YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:56:10,650 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:56:10,652 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:56:10,664 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:56:10,664 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:56:10,665 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:56:10,666 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:56:10,668 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:56:10,669 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:56:10,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:56:10,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:56:10,671 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:56:10,672 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:56:10,673 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:56:10,674 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:56:10,675 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:56:10,676 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:56:10,677 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:56:10,679 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:56:10,681 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:56:10,682 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:56:10,683 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:56:10,685 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:56:10,686 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:56:10,686 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:56:10,687 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:56:10,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:56:10,688 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:56:10,688 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:56:10,689 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:56:10,689 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:56:10,690 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:56:10,691 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:56:10,691 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:56:10,692 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:56:10,692 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:56:10,692 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:56:10,693 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:56:10,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:56:10,694 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-21 22:56:10,709 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:56:10,709 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:56:10,710 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:56:10,711 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:56:10,711 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:56:10,711 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:56:10,711 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:56:10,711 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:56:10,712 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:56:10,713 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:10,713 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:56:10,713 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:56:10,713 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:56:10,713 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:56:10,713 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:56:10,714 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:56:10,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:56:10,714 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:56:10,714 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:56:10,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:56:10,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:56:10,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:56:10,715 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:56:10,715 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:56:10,742 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:56:10,755 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:56:10,759 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:56:10,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:56:10,761 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:56:10,762 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 22:56:10,832 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/8b8f2bea866b4d82abdb776bb75411d5/FLAG97bc7a840 [2020-06-21 22:56:11,167 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:56:11,168 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-21 22:56:11,174 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/8b8f2bea866b4d82abdb776bb75411d5/FLAG97bc7a840 [2020-06-21 22:56:11,583 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/8b8f2bea866b4d82abdb776bb75411d5 [2020-06-21 22:56:11,595 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:56:11,596 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:56:11,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:56:11,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:56:11,601 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:56:11,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688d6cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11, skipping insertion in model container [2020-06-21 22:56:11,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:56:11,630 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:56:11,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:56:11,789 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:56:11,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:56:11,874 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:56:11,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11 WrapperNode [2020-06-21 22:56:11,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:56:11,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:56:11,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:56:11,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:56:11,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,891 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:56:11,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:56:11,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:56:11,912 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:56:11,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... [2020-06-21 22:56:11,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:56:11,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:56:11,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:56:11,932 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:56:11,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:56:12,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:56:12,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:56:12,141 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:56:12,141 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:56:12,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:56:12 BoogieIcfgContainer [2020-06-21 22:56:12,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:56:12,144 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:56:12,144 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:56:12,147 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:56:12,148 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:56:12" (1/1) ... [2020-06-21 22:56:12,165 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-21 22:56:12,166 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:56:12,167 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:56:12,168 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:56:12,168 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:56:12,170 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:56:12,171 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:56:12,171 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:56:12,185 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:56:12,193 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-21 22:56:12,198 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:56:12,200 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:56:12,214 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 22:56:12,216 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 22:56:12,218 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:56:12,218 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:56:12,224 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-21 22:56:12,225 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:56:12,225 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:56:12,225 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:56:12,226 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:56:12,226 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:56:12,226 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-21 22:56:12,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:56:12 BasicIcfg [2020-06-21 22:56:12,227 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:56:12,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:56:12,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:56:12,232 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:56:12,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:56:11" (1/4) ... [2020-06-21 22:56:12,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587476c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (2/4) ... [2020-06-21 22:56:12,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587476c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:56:12" (3/4) ... [2020-06-21 22:56:12,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587476c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:56:12" (4/4) ... [2020-06-21 22:56:12,236 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:56:12,248 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:56:12,258 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 22:56:12,277 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 22:56:12,309 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:56:12,310 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:56:12,310 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:56:12,310 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:56:12,310 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:56:12,311 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:56:12,311 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:56:12,311 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:56:12,311 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:56:12,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-21 22:56:12,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 22:56:12,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-21 22:56:12,385 INFO L451 ceAbstractionStarter]: At program point L17-2(lines 17 20) the Hoare annotation is: true [2020-06-21 22:56:12,385 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 22:56:12,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:56:12 BasicIcfg [2020-06-21 22:56:12,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:56:12,394 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:56:12,394 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:56:12,398 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:56:12,399 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:56:12,399 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 10:56:11" (1/5) ... [2020-06-21 22:56:12,400 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ee478b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,400 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:56:12,400 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:56:11" (2/5) ... [2020-06-21 22:56:12,400 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ee478b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,400 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:56:12,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:56:12" (3/5) ... [2020-06-21 22:56:12,401 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ee478b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,401 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:56:12,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:56:12" (4/5) ... [2020-06-21 22:56:12,402 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21ee478b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:56:12, skipping insertion in model container [2020-06-21 22:56:12,402 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:56:12,402 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:56:12" (5/5) ... [2020-06-21 22:56:12,403 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:56:12,431 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:56:12,431 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 22:56:12,431 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 22:56:12,431 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:56:12,432 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:56:12,432 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:56:12,432 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 22:56:12,432 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:56:12,432 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 22:56:12,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:56:12,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:56:12,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:56:12,454 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:56:12,459 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:56:12,459 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:56:12,459 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 22:56:12,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:56:12,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:56:12,460 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:56:12,460 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:56:12,460 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:56:12,460 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:56:12,465 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L17-2: Formula: (<= (+ v_ULTIMATE.start_main_~x~0_11 v_ULTIMATE.start_main_~y~0_10) 0) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-21 22:56:12,466 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [26] L17-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 (- 1))) (< 0 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~x~0_9 (+ (* 2 v_ULTIMATE.start_main_~x~0_10) v_ULTIMATE.start_main_~y~0_9))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 3#L17-2true [2020-06-21 22:56:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:56:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-06-21 22:56:12,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:56:12,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:56:12,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:56:12,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:56:12,544 INFO L82 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2020-06-21 22:56:12,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:56:12,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:56:12,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:56:12,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:56:12,558 INFO L82 PathProgramCache]: Analyzing trace with hash 2134, now seen corresponding path program 1 times [2020-06-21 22:56:12,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:56:12,559 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:56:12,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:56:12,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:56:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:56:12,619 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:56:12,620 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:56:12,620 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:56:12,621 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:56:12,621 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:56:12,621 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,621 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:56:12,621 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:56:12,621 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-21 22:56:12,622 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:56:12,622 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:56:12,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,745 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:56:12,747 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:12,753 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:56:12,787 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:12,862 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:12,862 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~x~0=11} Honda state: {ULTIMATE.start_main_~y~0=4, ULTIMATE.start_main_~x~0=11} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=13}] Lambdas: [2, 1, 2] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:12,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:12,917 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:12,917 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/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:12,922 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:12,949 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:12,949 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: [] [2020-06-21 22:56:12,957 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:56:12,957 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:56:12,957 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:56:12,957 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:56:12,957 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 22:56:12,957 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:12,958 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:56:12,958 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:56:12,958 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-21 22:56:12,958 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:56:12,958 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:56:12,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:12,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,074 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:56:13,075 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:13,078 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:13,078 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:13,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:13,082 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: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:13,109 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:13,109 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:13,136 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:13,137 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:13,141 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:13,141 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:13,145 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 22:56:13,145 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:13,172 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 22:56:13,172 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:56:13,203 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 22:56:13,203 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 22:56:13,292 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 22:56:13,295 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 22:56:13,295 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 22:56:13,295 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 22:56:13,295 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 22:56:13,295 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 22:56:13,296 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 22:56:13,296 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 22:56:13,296 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 22:56:13,296 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-21 22:56:13,296 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 22:56:13,296 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 22:56:13,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-21 22:56:13,409 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 22:56:13,415 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 22:56:13,417 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 [2020-06-21 22:56:13,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,419 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,419 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,425 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 22:56:13,425 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 22:56:13,433 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,434 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 [2020-06-21 22:56:13,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 22:56:13,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,437 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,437 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 [2020-06-21 22:56:13,438 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,438 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,438 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,438 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,438 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,439 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 22:56:13,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,440 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,440 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 [2020-06-21 22:56:13,441 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,441 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,441 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,441 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,441 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,442 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 22:56:13,442 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,443 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,443 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 [2020-06-21 22:56:13,444 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,444 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,444 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,444 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,450 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 22:56:13,450 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 22:56:13,490 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,490 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 [2020-06-21 22:56:13,491 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,491 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,492 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,492 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 22:56:13,494 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 22:56:13,494 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 22:56:13,501 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,501 INFO L497 LassoAnalysis]: Using template '2-nested'. [2020-06-21 22:56:13,502 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 [2020-06-21 22:56:13,503 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,503 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,503 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,503 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-21 22:56:13,506 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-21 22:56:13,506 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-21 22:56:13,510 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,510 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 [2020-06-21 22:56:13,511 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,511 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,511 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,511 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,512 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-21 22:56:13,512 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-21 22:56:13,512 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,513 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,513 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 [2020-06-21 22:56:13,514 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,514 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,514 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,515 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,515 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-21 22:56:13,515 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-21 22:56:13,515 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,516 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,516 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 [2020-06-21 22:56:13,517 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,517 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 22:56:13,517 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,517 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,517 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-21 22:56:13,518 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-06-21 22:56:13,518 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 22:56:13,519 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 22:56:13,519 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 [2020-06-21 22:56:13,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 22:56:13,521 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 22:56:13,521 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 22:56:13,522 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2020-06-21 22:56:13,526 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-06-21 22:56:13,527 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-06-21 22:56:13,578 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 22:56:13,640 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-06-21 22:56:13,641 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-21 22:56:13,643 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 22:56:13,647 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 3. [2020-06-21 22:56:13,648 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 22:56:13,648 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~y~0 + 3*ULTIMATE.start_main_~x~0 f1 = 2*ULTIMATE.start_main_~x~0 Supporting invariants [-1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 >= 0] [2020-06-21 22:56:13,656 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-06-21 22:56:13,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:56:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:56:13,729 WARN L254 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-21 22:56:13,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 22:56:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:56:13,742 WARN L254 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 7 conjunts are in the unsatisfiable core [2020-06-21 22:56:13,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 22:56:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:56:13,787 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-21 22:56:13,792 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-06-21 22:56:13,794 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-06-21 22:56:13,890 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-06-21 22:56:13,891 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 [2020-06-21 22:56:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-21 22:56:13,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-06-21 22:56:13,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-21 22:56:13,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 22:56:13,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-21 22:56:13,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 22:56:13,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-21 22:56:13,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 22:56:13,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-06-21 22:56:13,903 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-21 22:56:13,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-06-21 22:56:13,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-21 22:56:13,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-21 22:56:13,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-21 22:56:13,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 22:56:13,908 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 22:56:13,908 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 22:56:13,908 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-21 22:56:13,909 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 22:56:13,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-21 22:56:13,909 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-21 22:56:13,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-21 22:56:13,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:56:13 BasicIcfg [2020-06-21 22:56:13,915 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:56:13,916 INFO L168 Benchmark]: Toolchain (without parser) took 2320.81 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 565.9 MB in the beginning and 454.2 MB in the end (delta: 111.7 MB). Peak memory consumption was 127.5 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,918 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.1 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 22:56:13,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.64 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 565.9 MB in the beginning and 632.0 MB in the end (delta: -66.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 665.3 MB. Free memory was 632.0 MB in the beginning and 630.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,921 INFO L168 Benchmark]: Boogie Preprocessor took 20.03 ms. Allocated memory is still 665.3 MB. Free memory was 630.9 MB in the beginning and 628.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,921 INFO L168 Benchmark]: RCFGBuilder took 211.41 ms. Allocated memory is still 665.3 MB. Free memory was 627.0 MB in the beginning and 614.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,922 INFO L168 Benchmark]: BlockEncodingV2 took 83.34 ms. Allocated memory is still 665.3 MB. Free memory was 614.4 MB in the beginning and 610.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,923 INFO L168 Benchmark]: TraceAbstraction took 165.82 ms. Allocated memory is still 665.3 MB. Free memory was 609.0 MB in the beginning and 600.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,923 INFO L168 Benchmark]: BuchiAutomizer took 1521.13 ms. Allocated memory is still 665.3 MB. Free memory was 600.2 MB in the beginning and 454.2 MB in the end (delta: 146.1 MB). Peak memory consumption was 146.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:56:13,928 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 2 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 591.1 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 277.64 ms. Allocated memory was 649.6 MB in the beginning and 665.3 MB in the end (delta: 15.7 MB). Free memory was 565.9 MB in the beginning and 632.0 MB in the end (delta: -66.1 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.75 ms. Allocated memory is still 665.3 MB. Free memory was 632.0 MB in the beginning and 630.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.03 ms. Allocated memory is still 665.3 MB. Free memory was 630.9 MB in the beginning and 628.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 211.41 ms. Allocated memory is still 665.3 MB. Free memory was 627.0 MB in the beginning and 614.4 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 83.34 ms. Allocated memory is still 665.3 MB. Free memory was 614.4 MB in the beginning and 610.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 165.82 ms. Allocated memory is still 665.3 MB. Free memory was 609.0 MB in the beginning and 600.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1521.13 ms. Allocated memory is still 665.3 MB. Free memory was 600.2 MB in the beginning and 454.2 MB in the end (delta: 146.1 MB). Peak memory consumption was 146.1 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has 2-nested ranking function (if 2 * y + 3 * x > 0 then 1 else 0), (if 2 * y + 3 * x > 0 then 2 * y + 3 * x else 2 * x) and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf94 smp100 dnf100 smp100 tf102 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-21 22:56:08.334 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 22:56:14.166 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check