YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:32:10,128 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:32:10,130 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:32:10,141 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:32:10,141 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:32:10,142 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:32:10,143 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:32:10,145 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:32:10,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:32:10,147 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:32:10,148 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:32:10,148 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:32:10,149 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:32:10,150 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:32:10,151 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:32:10,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:32:10,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:32:10,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:32:10,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:32:10,157 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:32:10,158 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:32:10,159 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:32:10,161 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:32:10,161 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:32:10,162 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:32:10,162 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:32:10,163 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:32:10,163 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:32:10,164 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:32:10,164 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:32:10,165 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:32:10,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:32:10,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:32:10,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:32:10,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:32:10,168 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:32:10,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:32:10,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:32:10,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:32:10,170 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 01:32:10,184 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:32:10,184 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:32:10,185 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:32:10,185 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:32:10,185 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:32:10,185 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:32:10,185 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:32:10,186 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:32:10,186 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:32:10,186 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:32:10,186 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:32:10,186 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:32:10,186 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:10,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:32:10,187 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:32:10,188 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:32:10,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:32:10,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:32:10,188 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:32:10,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:32:10,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:32:10,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:32:10,189 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:32:10,189 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:32:10,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:32:10,227 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:32:10,230 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:32:10,232 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:32:10,232 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:32:10,233 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:32:10,298 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/ee0a6fbb9bf144e78f208620996031a4/FLAG8d2d00caa [2020-06-22 01:32:10,629 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:32:10,630 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:32:10,636 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/ee0a6fbb9bf144e78f208620996031a4/FLAG8d2d00caa [2020-06-22 01:32:11,037 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/ee0a6fbb9bf144e78f208620996031a4 [2020-06-22 01:32:11,048 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:32:11,050 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:32:11,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:32:11,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:32:11,055 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:32:11,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5ac81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:32:11,083 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:32:11,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:32:11,241 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:32:11,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:32:11,330 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:32:11,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11 WrapperNode [2020-06-22 01:32:11,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:32:11,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:32:11,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:32:11,332 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:32:11,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:32:11,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:32:11,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:32:11,368 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:32:11,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:32:11,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:32:11,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:32:11,388 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:32:11,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:32:11,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:32:11,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:32:11,591 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:32:11,592 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2020-06-22 01:32:11,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:11 BoogieIcfgContainer [2020-06-22 01:32:11,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:32:11,594 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:32:11,594 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:32:11,596 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:32:11,597 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:11" (1/1) ... [2020-06-22 01:32:11,613 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 10 edges [2020-06-22 01:32:11,615 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:32:11,615 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:32:11,616 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:32:11,616 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:32:11,618 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:32:11,619 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:32:11,620 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:32:11,635 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:32:11,643 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 01:32:11,648 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 01:32:11,650 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:32:11,665 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 01:32:11,668 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 01:32:11,669 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:32:11,669 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:32:11,669 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:32:11,670 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:32:11,670 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 01:32:11,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:11 BasicIcfg [2020-06-22 01:32:11,671 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:32:11,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:32:11,672 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:32:11,675 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:32:11,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:32:11" (1/4) ... [2020-06-22 01:32:11,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ebd565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (2/4) ... [2020-06-22 01:32:11,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ebd565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:11" (3/4) ... [2020-06-22 01:32:11,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ebd565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:11" (4/4) ... [2020-06-22 01:32:11,679 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:32:11,688 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:32:11,696 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:32:11,713 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:32:11,742 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:32:11,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:32:11,743 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:32:11,743 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:32:11,744 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:32:11,744 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:32:11,744 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:32:11,744 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:32:11,744 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:32:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 01:32:11,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:32:11,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 01:32:11,816 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:32:11,817 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 5 16) no Hoare annotation was computed. [2020-06-22 01:32:11,817 INFO L451 ceAbstractionStarter]: At program point L11-2(line 11) the Hoare annotation is: true [2020-06-22 01:32:11,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:11 BasicIcfg [2020-06-22 01:32:11,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:32:11,827 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:32:11,827 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:32:11,831 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:32:11,831 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:11,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:32:11" (1/5) ... [2020-06-22 01:32:11,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@363cdf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,832 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:11,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:32:11" (2/5) ... [2020-06-22 01:32:11,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@363cdf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,833 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:11,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:32:11" (3/5) ... [2020-06-22 01:32:11,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@363cdf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,834 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:11,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:32:11" (4/5) ... [2020-06-22 01:32:11,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@363cdf5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:11, skipping insertion in model container [2020-06-22 01:32:11,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:32:11,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:32:11" (5/5) ... [2020-06-22 01:32:11,836 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:32:11,863 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:32:11,864 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:32:11,864 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:32:11,864 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:32:11,864 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:32:11,865 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:32:11,865 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:32:11,865 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:32:11,865 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:32:11,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:32:11,886 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 01:32:11,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:11,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:11,892 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:32:11,893 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:32:11,893 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:32:11,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:32:11,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-06-22 01:32:11,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:11,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:11,894 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:32:11,894 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:32:11,899 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [30] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~j~0_1 5)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L11-2true [2020-06-22 01:32:11,900 INFO L796 eck$LassoCheckResult]: Loop: 5#L11-2true [38] L11-2-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 100)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L11-2true [2020-06-22 01:32:11,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash 61, now seen corresponding path program 1 times [2020-06-22 01:32:11,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:11,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:11,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:11,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:11,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:11,981 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-06-22 01:32:11,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:11,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:11,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:11,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:11,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:11,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:11,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1929, now seen corresponding path program 1 times [2020-06-22 01:32:11,997 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:11,997 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:11,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:11,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:11,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:12,047 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:12,048 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:12,049 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:12,049 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:12,049 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:32:12,049 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,049 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:12,049 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:12,050 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:32:12,050 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:12,050 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:12,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,147 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:12,148 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,155 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:12,155 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:12,188 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:12,188 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,195 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:12,195 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:12,222 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:12,222 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:12,228 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:32:12,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:12,292 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:32:12,294 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:12,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:12,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:12,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:12,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:32:12,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:32:12,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:12,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:12,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 01:32:12,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:12,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:12,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,381 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:12,387 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:32:12,389 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 01:32:12,390 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:12,391 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:12,391 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:12,391 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:12,396 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:12,396 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:12,404 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:12,404 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 01:32:12,405 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:12,405 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:12,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:12,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:12,408 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:32:12,408 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:32:12,417 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:32:12,418 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 01:32:12,419 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:12,419 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:12,419 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:12,420 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:12,420 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:12,421 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:12,421 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:12,427 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:32:12,432 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:32:12,432 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:32:12,434 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:32:12,434 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:32:12,435 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:32:12,435 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2020-06-22 01:32:12,437 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:32:12,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:12,484 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:32:12,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:12,497 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:32:12,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:32:12,510 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 01:32:12,515 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 01:32:12,516 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 2 states. [2020-06-22 01:32:12,542 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 2 states. Result 6 states and 10 transitions. Complement of second has 4 states. [2020-06-22 01:32:12,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 01:32:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 01:32:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-06-22 01:32:12,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 01:32:12,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 01:32:12,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:32:12,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,554 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 10 transitions. [2020-06-22 01:32:12,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:32:12,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 7 transitions. [2020-06-22 01:32:12,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 01:32:12,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-22 01:32:12,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2020-06-22 01:32:12,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:32:12,561 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-06-22 01:32:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2020-06-22 01:32:12,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2020-06-22 01:32:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 01:32:12,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-06-22 01:32:12,588 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 01:32:12,588 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-22 01:32:12,588 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:32:12,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-06-22 01:32:12,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:32:12,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:32:12,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:32:12,590 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:32:12,590 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:32:12,590 INFO L794 eck$LassoCheckResult]: Stem: 37#ULTIMATE.startENTRY [30] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~j~0_1 5)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 38#L11-2 [39] L11-2-->L13-1: Formula: (>= v_ULTIMATE.start_main_~i~0_6 100) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[] 39#L13-1 [2020-06-22 01:32:12,590 INFO L796 eck$LassoCheckResult]: Loop: 39#L13-1 [34] L13-1-->L13-1: Formula: (and (< v_ULTIMATE.start_main_~j~0_8 21) (= v_ULTIMATE.start_main_~j~0_7 (+ v_ULTIMATE.start_main_~j~0_8 3))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_8} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 39#L13-1 [2020-06-22 01:32:12,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:12,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1930, now seen corresponding path program 1 times [2020-06-22 01:32:12,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:12,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:12,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:12,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:12,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:32:12,627 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:32:12,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 01:32:12,630 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 01:32:12,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:12,630 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-06-22 01:32:12,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:32:12,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:32:12,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:12,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:32:12,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:32:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:32:12,648 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:12,648 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:12,648 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:12,648 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:12,649 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:32:12,649 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,649 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:12,649 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:12,649 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:32:12,649 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:12,649 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:12,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,702 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:12,703 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:12,707 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:12,734 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:32:12,734 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,740 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:32:12,741 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:32:12,772 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:32:12,772 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:32:12,802 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:32:12,804 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:32:12,804 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:32:12,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:32:12,805 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:32:12,805 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:32:12,805 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:32:12,805 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:32:12,805 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:32:12,805 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:32:12,805 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:32:12,805 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:32:12,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:32:12,856 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:32:12,856 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:32:12,857 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 01:32:12,858 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:32:12,858 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:32:12,858 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:32:12,858 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:32:12,858 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:32:12,859 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:32:12,859 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:32:12,865 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:32:12,869 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:32:12,869 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-22 01:32:12,870 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:32:12,870 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:32:12,870 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:32:12,870 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] [2020-06-22 01:32:12,871 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:32:12,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:32:12,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:12,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:32:12,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:32:12,895 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:32:12,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:32:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:32:12,896 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 01:32:12,896 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 01:32:12,896 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-06-22 01:32:12,906 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2020-06-22 01:32:12,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 01:32:12,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 01:32:12,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-06-22 01:32:12,907 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 01:32:12,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2020-06-22 01:32:12,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 01:32:12,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:32:12,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2020-06-22 01:32:12,910 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:32:12,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2020-06-22 01:32:12,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:32:12,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:32:12,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:32:12,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:32:12,911 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:12,911 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:12,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:32:12,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:32:12,914 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2020-06-22 01:32:12,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:32:12,917 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-06-22 01:32:12,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 01:32:12,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-06-22 01:32:12,919 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:32:12,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-06-22 01:32:12,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:32:12,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:32:12,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:32:12,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:32:12,920 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:12,920 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:12,920 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:32:12,920 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:32:12,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:32:12,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:32:12,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:32:12,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:32:12 BasicIcfg [2020-06-22 01:32:12,926 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:32:12,927 INFO L168 Benchmark]: Toolchain (without parser) took 1878.02 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 560.6 MB in the beginning and 504.9 MB in the end (delta: 55.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,929 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:32:12,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.45 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 559.5 MB in the beginning and 649.5 MB in the end (delta: -90.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 682.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,931 INFO L168 Benchmark]: Boogie Preprocessor took 19.52 ms. Allocated memory is still 682.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,931 INFO L168 Benchmark]: RCFGBuilder took 205.67 ms. Allocated memory is still 682.6 MB. Free memory was 646.2 MB in the beginning and 632.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,932 INFO L168 Benchmark]: BlockEncodingV2 took 77.01 ms. Allocated memory is still 682.6 MB. Free memory was 631.0 MB in the beginning and 626.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,932 INFO L168 Benchmark]: TraceAbstraction took 155.04 ms. Allocated memory is still 682.6 MB. Free memory was 626.7 MB in the beginning and 618.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,933 INFO L168 Benchmark]: BuchiAutomizer took 1099.37 ms. Allocated memory is still 682.6 MB. Free memory was 617.0 MB in the beginning and 504.9 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:32:12,937 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 10 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 280.45 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 559.5 MB in the beginning and 649.5 MB in the end (delta: -90.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.83 ms. Allocated memory is still 682.6 MB. Free memory was 648.4 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.52 ms. Allocated memory is still 682.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 205.67 ms. Allocated memory is still 682.6 MB. Free memory was 646.2 MB in the beginning and 632.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.01 ms. Allocated memory is still 682.6 MB. Free memory was 631.0 MB in the beginning and 626.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 155.04 ms. Allocated memory is still 682.6 MB. Free memory was 626.7 MB in the beginning and 618.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1099.37 ms. Allocated memory is still 682.6 MB. Free memory was 617.0 MB in the beginning and 504.9 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s 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=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 199 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 10 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:32:07.813 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:32:13.171 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check