NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 23:22:25,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 23:22:25,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 23:22:25,135 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 23:22:25,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 23:22:25,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 23:22:25,138 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 23:22:25,139 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 23:22:25,141 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 23:22:25,142 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 23:22:25,143 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 23:22:25,143 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 23:22:25,144 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 23:22:25,145 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 23:22:25,146 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 23:22:25,146 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 23:22:25,147 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 23:22:25,149 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 23:22:25,151 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 23:22:25,152 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 23:22:25,153 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 23:22:25,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 23:22:25,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 23:22:25,157 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 23:22:25,157 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 23:22:25,158 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 23:22:25,158 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 23:22:25,159 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 23:22:25,159 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 23:22:25,160 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 23:22:25,160 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 23:22:25,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 23:22:25,162 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 23:22:25,162 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 23:22:25,163 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 23:22:25,163 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 23:22:25,163 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 23:22:25,164 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 23:22:25,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 23:22:25,165 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 23:22:25,180 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 23:22:25,180 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 23:22:25,182 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 23:22:25,182 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 23:22:25,182 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 23:22:25,182 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:22:25,182 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 23:22:25,182 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 23:22:25,183 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 23:22:25,184 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:22:25,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 23:22:25,184 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 23:22:25,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 23:22:25,184 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 23:22:25,185 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 23:22:25,185 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 23:22:25,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 23:22:25,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 23:22:25,185 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 23:22:25,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 23:22:25,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 23:22:25,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 23:22:25,186 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 23:22:25,186 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 23:22:25,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 23:22:25,226 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 23:22:25,230 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 23:22:25,231 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 23:22:25,231 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 23:22:25,232 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:22:25,303 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/6d0e35fe401f41cdac11e5303830c350/FLAG982d2e97d [2020-06-21 23:22:25,654 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 23:22:25,655 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:22:25,661 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/6d0e35fe401f41cdac11e5303830c350/FLAG982d2e97d [2020-06-21 23:22:26,065 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/6d0e35fe401f41cdac11e5303830c350 [2020-06-21 23:22:26,076 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 23:22:26,078 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 23:22:26,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 23:22:26,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 23:22:26,083 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 23:22:26,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e0d8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 23:22:26,112 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 23:22:26,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:22:26,272 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 23:22:26,289 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:22:26,365 INFO L195 MainTranslator]: Completed translation [2020-06-21 23:22:26,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26 WrapperNode [2020-06-21 23:22:26,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 23:22:26,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 23:22:26,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 23:22:26,371 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 23:22:26,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 23:22:26,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 23:22:26,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 23:22:26,409 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 23:22:26,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 23:22:26,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 23:22:26,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 23:22:26,429 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 23:22:26,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (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 [2020-06-21 23:22:26,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 23:22:26,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 23:22:26,638 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 23:22:26,639 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 23:22:26,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:22:26 BoogieIcfgContainer [2020-06-21 23:22:26,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 23:22:26,641 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 23:22:26,641 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 23:22:26,643 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 23:22:26,644 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:22:26" (1/1) ... [2020-06-21 23:22:26,660 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-06-21 23:22:26,661 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 23:22:26,662 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 23:22:26,663 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 23:22:26,663 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:22:26,665 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 23:22:26,666 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 23:22:26,666 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 23:22:26,681 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 23:22:26,696 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-21 23:22:26,700 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 23:22:26,703 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:22:26,715 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 23:22:26,717 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 23:22:26,719 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:22:26,719 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:22:26,719 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 23:22:26,719 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:22:26,720 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2020-06-21 23:22:26,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:22:26 BasicIcfg [2020-06-21 23:22:26,720 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 23:22:26,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 23:22:26,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 23:22:26,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 23:22:26,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 11:22:26" (1/4) ... [2020-06-21 23:22:26,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22310dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (2/4) ... [2020-06-21 23:22:26,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22310dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:22:26" (3/4) ... [2020-06-21 23:22:26,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22310dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:22:26" (4/4) ... [2020-06-21 23:22:26,728 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:22:26,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 23:22:26,746 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 23:22:26,763 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 23:22:26,792 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:22:26,792 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 23:22:26,793 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 23:22:26,793 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:22:26,793 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:22:26,793 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:22:26,793 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 23:22:26,793 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:22:26,793 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 23:22:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-21 23:22:26,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 23:22:26,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-21 23:22:26,865 INFO L451 ceAbstractionStarter]: At program point L16-1(lines 9 20) the Hoare annotation is: true [2020-06-21 23:22:26,865 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 23:22:26,865 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 9 20) no Hoare annotation was computed. [2020-06-21 23:22:26,865 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-06-21 23:22:26,865 INFO L448 ceAbstractionStarter]: For program point L10-2(lines 9 20) no Hoare annotation was computed. [2020-06-21 23:22:26,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:22:26 BasicIcfg [2020-06-21 23:22:26,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 23:22:26,874 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 23:22:26,874 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 23:22:26,877 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 23:22:26,878 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:22:26,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 11:22:26" (1/5) ... [2020-06-21 23:22:26,879 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fcce0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,879 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:22:26,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:22:26" (2/5) ... [2020-06-21 23:22:26,880 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fcce0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,880 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:22:26,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:22:26" (3/5) ... [2020-06-21 23:22:26,880 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fcce0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,881 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:22:26,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:22:26" (4/5) ... [2020-06-21 23:22:26,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fcce0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:22:26, skipping insertion in model container [2020-06-21 23:22:26,881 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:22:26,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:22:26" (5/5) ... [2020-06-21 23:22:26,883 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:22:26,910 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:22:26,910 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 23:22:26,910 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 23:22:26,910 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:22:26,910 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:22:26,910 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:22:26,911 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 23:22:26,911 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:22:26,911 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 23:22:26,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-21 23:22:26,932 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 23:22:26,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:22:26,932 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:22:26,939 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:22:26,939 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 23:22:26,939 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 23:22:26,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-21 23:22:26,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-21 23:22:26,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:22:26,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:22:26,941 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:22:26,941 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 23:22:26,946 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L16-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 3#L16-1true [2020-06-21 23:22:26,947 INFO L796 eck$LassoCheckResult]: Loop: 3#L16-1true [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 4#L10true [50] L10-->L10-2: Formula: (>= v_ULTIMATE.start_main_~i~0_10 20) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 7#L10-2true [51] L10-2-->L13-1: Formula: (>= 10 v_ULTIMATE.start_main_~i~0_13) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 6#L13-1true [55] L13-1-->L16-1: Formula: (> v_ULTIMATE.start_main_~i~0_16 40) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} AuxVars[] AssignedVars[] 3#L16-1true [2020-06-21 23:22:26,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:26,953 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 1 times [2020-06-21 23:22:26,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:26,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:26,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:26,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:26,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:27,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2105265, now seen corresponding path program 1 times [2020-06-21 23:22:27,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:27,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:27,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:27,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:27,069 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 23:22:27,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 23:22:27,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-21 23:22:27,076 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-21 23:22:27,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 23:22:27,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 23:22:27,093 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2020-06-21 23:22:27,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 23:22:27,150 INFO L93 Difference]: Finished difference Result 9 states and 15 transitions. [2020-06-21 23:22:27,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 23:22:27,154 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 15 transitions. [2020-06-21 23:22:27,155 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-21 23:22:27,159 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 15 transitions. [2020-06-21 23:22:27,160 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-06-21 23:22:27,160 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-06-21 23:22:27,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 15 transitions. [2020-06-21 23:22:27,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 23:22:27,162 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-06-21 23:22:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 15 transitions. [2020-06-21 23:22:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-06-21 23:22:27,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-21 23:22:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 15 transitions. [2020-06-21 23:22:27,194 INFO L729 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-06-21 23:22:27,194 INFO L609 BuchiCegarLoop]: Abstraction has 9 states and 15 transitions. [2020-06-21 23:22:27,194 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 23:22:27,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 15 transitions. [2020-06-21 23:22:27,195 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-21 23:22:27,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:22:27,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:22:27,195 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:22:27,196 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 23:22:27,196 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L16-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 27#L16-1 [2020-06-21 23:22:27,196 INFO L796 eck$LassoCheckResult]: Loop: 27#L16-1 [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 29#L10 [39] L10-->L10-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_9 20) (= v_ULTIMATE.start_main_~i~0_8 (+ v_ULTIMATE.start_main_~i~0_9 (- 1)))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 30#L10-2 [51] L10-2-->L13-1: Formula: (>= 10 v_ULTIMATE.start_main_~i~0_13) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13} AuxVars[] AssignedVars[] 31#L13-1 [56] L13-1-->L16-1: Formula: (> 30 v_ULTIMATE.start_main_~i~0_16) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} AuxVars[] AssignedVars[] 27#L16-1 [2020-06-21 23:22:27,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:27,197 INFO L82 PathProgramCache]: Analyzing trace with hash 72, now seen corresponding path program 2 times [2020-06-21 23:22:27,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:27,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:27,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:27,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:27,205 INFO L82 PathProgramCache]: Analyzing trace with hash 2094695, now seen corresponding path program 1 times [2020-06-21 23:22:27,205 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:27,205 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:27,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,207 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:22:27,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash 67664686, now seen corresponding path program 1 times [2020-06-21 23:22:27,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:27,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:27,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:27,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:27,278 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:22:27,279 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:22:27,279 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:22:27,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:22:27,280 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:22:27,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:22:27,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:22:27,280 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:22:27,280 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-21 23:22:27,280 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:22:27,281 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:22:27,299 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 23:22:27,307 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 23:22:27,316 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 23:22:27,393 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:22:27,394 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 [2020-06-21 23:22:27,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:27,406 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:27,440 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:22:27,440 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 [2020-06-21 23:22:27,446 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:27,446 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:27,474 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:22:27,474 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 [2020-06-21 23:22:27,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:27,480 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 [2020-06-21 23:22:27,511 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:22:27,511 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:27,542 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:22:27,544 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:22:27,544 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:22:27,544 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:22:27,544 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:22:27,545 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:22:27,545 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:22:27,545 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:22:27,545 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:22:27,545 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-21 23:22:27,545 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:22:27,545 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:22:27,547 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 23:22:27,551 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 23:22:27,554 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 23:22:27,615 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:22:27,621 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:22:27,622 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 23:22:27,624 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:27,624 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:27,624 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:27,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:27,629 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:22:27,629 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:22:27,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:22:27,637 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 23:22:27,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:27,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:27,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:27,638 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:27,641 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:22:27,641 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:22:27,649 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:22:27,650 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 23:22:27,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:27,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:22:27,651 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:27,651 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:27,651 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:27,652 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:22:27,652 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:22:27,659 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:22:27,664 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-21 23:22:27,664 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-21 23:22:27,666 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:22:27,666 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-21 23:22:27,666 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:22:27,667 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-21 23:22:27,668 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-21 23:22:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:27,696 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-21 23:22:27,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:27,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:22:27,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:27,740 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 23:22:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:27,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:22:27,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:27,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:22:27,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:27,816 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-21 23:22:27,819 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 4 loop predicates [2020-06-21 23:22:27,820 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 9 states and 15 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-06-21 23:22:27,961 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 9 states and 15 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 39 states and 66 transitions. Complement of second has 11 states. [2020-06-21 23:22:27,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 2 accepting loop states [2020-06-21 23:22:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-21 23:22:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2020-06-21 23:22:27,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-21 23:22:27,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:27,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 5 letters. Loop has 4 letters. [2020-06-21 23:22:27,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:27,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 1 letters. Loop has 8 letters. [2020-06-21 23:22:27,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:27,988 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 66 transitions. [2020-06-21 23:22:27,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-06-21 23:22:27,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 26 states and 41 transitions. [2020-06-21 23:22:27,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-06-21 23:22:27,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-06-21 23:22:27,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 41 transitions. [2020-06-21 23:22:27,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:22:27,995 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 41 transitions. [2020-06-21 23:22:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 41 transitions. [2020-06-21 23:22:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 15. [2020-06-21 23:22:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-06-21 23:22:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 26 transitions. [2020-06-21 23:22:27,998 INFO L729 BuchiCegarLoop]: Abstraction has 15 states and 26 transitions. [2020-06-21 23:22:27,998 INFO L609 BuchiCegarLoop]: Abstraction has 15 states and 26 transitions. [2020-06-21 23:22:27,998 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-21 23:22:27,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 26 transitions. [2020-06-21 23:22:27,999 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-21 23:22:27,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:22:27,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:22:28,000 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-21 23:22:28,000 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 23:22:28,000 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L16-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 150#L16-1 [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 144#L10 [2020-06-21 23:22:28,000 INFO L796 eck$LassoCheckResult]: Loop: 144#L10 [50] L10-->L10-2: Formula: (>= v_ULTIMATE.start_main_~i~0_10 20) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 147#L10-2 [46] L10-2-->L13-1: Formula: (and (< 10 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 157#L13-1 [55] L13-1-->L16-1: Formula: (> v_ULTIMATE.start_main_~i~0_16 40) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} AuxVars[] AssignedVars[] 143#L16-1 [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 144#L10 [2020-06-21 23:22:28,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,001 INFO L82 PathProgramCache]: Analyzing trace with hash 2270, now seen corresponding path program 1 times [2020-06-21 23:22:28,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,009 INFO L82 PathProgramCache]: Analyzing trace with hash 2459020, now seen corresponding path program 1 times [2020-06-21 23:22:28,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash 2097928169, now seen corresponding path program 1 times [2020-06-21 23:22:28,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,049 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:22:28,049 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:22:28,049 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:22:28,049 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:22:28,049 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-21 23:22:28,049 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:22:28,050 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:22:28,050 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:22:28,050 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-21 23:22:28,050 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:22:28,050 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:22:28,052 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 23:22:28,063 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 23:22:28,067 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 23:22:28,133 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:22:28,134 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 [2020-06-21 23:22:28,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:28,137 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:28,164 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:22:28,165 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 [2020-06-21 23:22:28,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:28,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:28,198 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-21 23:22:28,198 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 [2020-06-21 23:22:28,204 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-21 23:22:28,204 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:22:28,236 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-21 23:22:28,236 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-21 23:22:28,474 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-21 23:22:28,477 INFO L216 LassoAnalysis]: Preferences: [2020-06-21 23:22:28,477 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-21 23:22:28,477 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-21 23:22:28,478 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-21 23:22:28,478 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-21 23:22:28,478 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-21 23:22:28,478 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-21 23:22:28,478 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-21 23:22:28,478 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-21 23:22:28,478 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-21 23:22:28,478 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-21 23:22:28,480 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 23:22:28,484 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 23:22:28,487 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 23:22:28,528 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-21 23:22:28,529 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-21 23:22:28,529 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 23:22:28,530 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:28,530 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:28,530 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:28,530 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:28,532 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:22:28,532 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:22:28,537 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:22:28,537 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 23:22:28,537 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:28,538 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:28,538 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:28,538 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:28,540 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-21 23:22:28,540 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-21 23:22:28,546 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-21 23:22:28,546 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 23:22:28,547 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-21 23:22:28,547 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-21 23:22:28,547 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-21 23:22:28,547 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-21 23:22:28,547 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-21 23:22:28,548 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-21 23:22:28,548 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-21 23:22:28,553 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-21 23:22:28,556 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-21 23:22:28,556 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2020-06-21 23:22:28,557 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-21 23:22:28,557 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-21 23:22:28,557 INFO L518 LassoAnalysis]: Proved termination. [2020-06-21 23:22:28,557 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 97 Supporting invariants [] [2020-06-21 23:22:28,558 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-21 23:22:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:28,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-21 23:22:28,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:22:28,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-21 23:22:28,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-21 23:22:28,616 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 23:22:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,622 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-21 23:22:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,628 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-21 23:22:28,628 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-21 23:22:28,629 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 2 loop predicates [2020-06-21 23:22:28,629 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 15 states and 26 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-06-21 23:22:28,675 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 15 states and 26 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 27 states and 42 transitions. Complement of second has 9 states. [2020-06-21 23:22:28,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-06-21 23:22:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-21 23:22:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2020-06-21 23:22:28,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-21 23:22:28,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:28,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 4 letters. [2020-06-21 23:22:28,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:28,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 2 letters. Loop has 8 letters. [2020-06-21 23:22:28,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-21 23:22:28,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 42 transitions. [2020-06-21 23:22:28,680 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-21 23:22:28,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 41 transitions. [2020-06-21 23:22:28,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-06-21 23:22:28,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-21 23:22:28,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 41 transitions. [2020-06-21 23:22:28,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-21 23:22:28,682 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 41 transitions. [2020-06-21 23:22:28,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 41 transitions. [2020-06-21 23:22:28,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-06-21 23:22:28,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-06-21 23:22:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 39 transitions. [2020-06-21 23:22:28,685 INFO L729 BuchiCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-06-21 23:22:28,685 INFO L609 BuchiCegarLoop]: Abstraction has 24 states and 39 transitions. [2020-06-21 23:22:28,686 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-21 23:22:28,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 39 transitions. [2020-06-21 23:22:28,687 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-06-21 23:22:28,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:22:28,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:22:28,687 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-21 23:22:28,687 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-21 23:22:28,688 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY [41] ULTIMATE.startENTRY-->L16-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 236#L16-1 [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 246#L10 [50] L10-->L10-2: Formula: (>= v_ULTIMATE.start_main_~i~0_10 20) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 233#L10-2 [2020-06-21 23:22:28,688 INFO L796 eck$LassoCheckResult]: Loop: 233#L10-2 [46] L10-2-->L13-1: Formula: (and (< 10 v_ULTIMATE.start_main_~i~0_12) (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 252#L13-1 [43] L13-1-->L16-1: Formula: (and (<= 30 v_ULTIMATE.start_main_~i~0_15) (= v_ULTIMATE.start_main_~i~0_14 (+ v_ULTIMATE.start_main_~i~0_15 (- 1))) (<= v_ULTIMATE.start_main_~i~0_15 40)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 229#L16-1 [38] L16-1-->L10: Formula: (and (< 0 v_ULTIMATE.start_main_~i~0_7) (< v_ULTIMATE.start_main_~i~0_7 50)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 230#L10 [50] L10-->L10-2: Formula: (>= v_ULTIMATE.start_main_~i~0_10 20) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 233#L10-2 [2020-06-21 23:22:28,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,688 INFO L82 PathProgramCache]: Analyzing trace with hash 70420, now seen corresponding path program 1 times [2020-06-21 23:22:28,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,695 INFO L82 PathProgramCache]: Analyzing trace with hash 2336458, now seen corresponding path program 1 times [2020-06-21 23:22:28,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:22:28,702 INFO L82 PathProgramCache]: Analyzing trace with hash 611252317, now seen corresponding path program 1 times [2020-06-21 23:22:28,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:22:28,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:22:28,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:22:28,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:22:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:22:28,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:22:28 BasicIcfg [2020-06-21 23:22:28,782 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 23:22:28,783 INFO L168 Benchmark]: Toolchain (without parser) took 2705.95 ms. Allocated memory was 514.9 MB in the beginning and 586.2 MB in the end (delta: 71.3 MB). Free memory was 440.0 MB in the beginning and 475.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,785 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 462.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 23:22:28,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.40 ms. Allocated memory was 514.9 MB in the beginning and 560.5 MB in the end (delta: 45.6 MB). Free memory was 439.5 MB in the beginning and 531.3 MB in the end (delta: -91.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.53 ms. Allocated memory is still 560.5 MB. Free memory was 531.3 MB in the beginning and 529.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,786 INFO L168 Benchmark]: Boogie Preprocessor took 19.89 ms. Allocated memory is still 560.5 MB. Free memory was 529.6 MB in the beginning and 527.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,787 INFO L168 Benchmark]: RCFGBuilder took 211.91 ms. Allocated memory is still 560.5 MB. Free memory was 527.7 MB in the beginning and 516.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,787 INFO L168 Benchmark]: BlockEncodingV2 took 79.42 ms. Allocated memory is still 560.5 MB. Free memory was 516.3 MB in the beginning and 510.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,788 INFO L168 Benchmark]: TraceAbstraction took 152.61 ms. Allocated memory is still 560.5 MB. Free memory was 510.9 MB in the beginning and 502.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,789 INFO L168 Benchmark]: BuchiAutomizer took 1908.10 ms. Allocated memory was 560.5 MB in the beginning and 586.2 MB in the end (delta: 25.7 MB). Free memory was 501.5 MB in the beginning and 475.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 52.1 MB. Max. memory is 50.3 GB. [2020-06-21 23:22:28,795 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 9 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 462.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.40 ms. Allocated memory was 514.9 MB in the beginning and 560.5 MB in the end (delta: 45.6 MB). Free memory was 439.5 MB in the beginning and 531.3 MB in the end (delta: -91.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 37.53 ms. Allocated memory is still 560.5 MB. Free memory was 531.3 MB in the beginning and 529.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.89 ms. Allocated memory is still 560.5 MB. Free memory was 529.6 MB in the beginning and 527.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * RCFGBuilder took 211.91 ms. Allocated memory is still 560.5 MB. Free memory was 527.7 MB in the beginning and 516.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.42 ms. Allocated memory is still 560.5 MB. Free memory was 516.3 MB in the beginning and 510.9 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 152.61 ms. Allocated memory is still 560.5 MB. Free memory was 510.9 MB in the beginning and 502.0 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1908.10 ms. Allocated memory was 560.5 MB in the beginning and 586.2 MB in the end (delta: 25.7 MB). Free memory was 501.5 MB in the beginning and 475.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 52.1 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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) and one nonterminating remainder module.One nondeterministic module has affine ranking function i and consists of 7 locations. One nondeterministic module has affine ranking function -2 * i + 97 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 24 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 13 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 24 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 45 SDslu, 0 SDs, 0 SdLazy, 89 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d490f11=0, \result=0, i=29} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 0 && i < 50 [L10] COND FALSE !(i < 20) Loop: [L13] COND TRUE i > 10 [L14] i = i+1 [L16] COND TRUE 30 <= i && i <= 40 [L17] i = i-1 [L9] COND TRUE i > 0 && i < 50 [L10] COND FALSE !(i < 20) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 23:22:21.391 ----------------------------------------------- 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 2020-06-21 23:22:29.030 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check