/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:28:52,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:28:52,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:28:52,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:28:52,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:28:52,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:28:52,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:28:52,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:28:52,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:28:52,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:28:52,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:28:52,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:28:52,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:28:52,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:28:52,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:28:52,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:28:52,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:28:52,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:28:52,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:28:52,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:28:52,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:28:52,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:28:52,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:28:52,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:28:52,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:28:52,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:28:52,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:28:52,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:28:52,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:28:52,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:28:52,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:28:52,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:28:52,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:28:52,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:28:52,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:28:52,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:28:52,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:28:52,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:28:52,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:28:52,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:28:52,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:28:52,231 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:28:52,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:28:52,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:28:52,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:28:52,247 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:28:52,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:28:52,247 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:28:52,248 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:28:52,248 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:28:52,248 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:28:52,248 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:28:52,248 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:28:52,248 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:28:52,249 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:28:52,249 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:28:52,249 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:52,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:28:52,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:28:52,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:28:52,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:28:52,250 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:28:52,250 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:28:52,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:28:52,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:28:52,251 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:28:52,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:28:52,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:28:52,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:28:52,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:28:52,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:28:52,418 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:28:52,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:28:52,435 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:28:52,436 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:28:52,436 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:28:52,437 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:28:52,505 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_hrLreH/tmp/0106414c87d445bd92c13549b4412f47/FLAG166029675 [2020-07-01 12:28:52,833 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:28:52,834 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:28:52,840 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_hrLreH/tmp/0106414c87d445bd92c13549b4412f47/FLAG166029675 [2020-07-01 12:28:53,250 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_hrLreH/tmp/0106414c87d445bd92c13549b4412f47 [2020-07-01 12:28:53,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:28:53,263 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:28:53,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:28:53,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:28:53,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:28:53,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ace9186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53, skipping insertion in model container [2020-07-01 12:28:53,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:28:53,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:28:53,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:28:53,526 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:28:53,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:28:53,558 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:28:53,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53 WrapperNode [2020-07-01 12:28:53,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:28:53,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:28:53,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:28:53,559 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:28:53,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:28:53,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:28:53,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:28:53,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:28:53,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,614 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:28:53,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:28:53,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:28:53,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:28:53,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (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 [2020-07-01 12:28:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:28:53,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:28:53,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:28:53,849 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:28:53,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:28:53 BoogieIcfgContainer [2020-07-01 12:28:53,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:28:53,854 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:28:53,854 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:28:53,856 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:28:53,857 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:28:53" (1/1) ... [2020-07-01 12:28:53,869 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 12:28:53,871 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:28:53,871 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:28:53,872 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:28:53,872 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:28:53,874 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:28:53,875 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:28:53,875 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:28:53,889 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:28:53,896 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:28:53,901 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:28:53,903 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:28:53,918 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:28:53,920 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:28:53,922 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:28:53,922 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:28:53,922 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:28:53,922 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:28:53,923 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 12:28:53,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:28:53 BasicIcfg [2020-07-01 12:28:53,923 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:28:53,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:28:53,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:28:53,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:28:53,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:28:53" (1/4) ... [2020-07-01 12:28:53,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5ae874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:28:53, skipping insertion in model container [2020-07-01 12:28:53,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (2/4) ... [2020-07-01 12:28:53,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5ae874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:28:53, skipping insertion in model container [2020-07-01 12:28:53,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:28:53" (3/4) ... [2020-07-01 12:28:53,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e5ae874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:28:53, skipping insertion in model container [2020-07-01 12:28:53,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:28:53" (4/4) ... [2020-07-01 12:28:53,932 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:28:53,943 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:28:53,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:28:53,964 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:28:53,987 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:28:53,987 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:28:53,987 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:28:53,988 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:28:53,988 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:28:53,988 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:28:53,988 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:28:53,988 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:28:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:28:54,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:28:54,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:28:54,064 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:28:54,064 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 15) the Hoare annotation is: true [2020-07-01 12:28:54,065 INFO L271 CegarLoopResult]: At program point L10-2(lines 10 17) the Hoare annotation is: true [2020-07-01 12:28:54,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:28:54 BasicIcfg [2020-07-01 12:28:54,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:28:54,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:28:54,074 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:28:54,078 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:28:54,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:28:54,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:28:53" (1/5) ... [2020-07-01 12:28:54,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dfe1808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:28:54, skipping insertion in model container [2020-07-01 12:28:54,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:28:54,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:28:53" (2/5) ... [2020-07-01 12:28:54,080 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dfe1808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:28:54, skipping insertion in model container [2020-07-01 12:28:54,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:28:54,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:28:53" (3/5) ... [2020-07-01 12:28:54,081 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dfe1808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:28:54, skipping insertion in model container [2020-07-01 12:28:54,081 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:28:54,081 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:28:53" (4/5) ... [2020-07-01 12:28:54,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4dfe1808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:28:54, skipping insertion in model container [2020-07-01 12:28:54,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:28:54,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:28:54" (5/5) ... [2020-07-01 12:28:54,084 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:28:54,111 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:28:54,111 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:28:54,112 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:28:54,112 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:28:54,112 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:28:54,112 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:28:54,112 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:28:54,112 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:28:54,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:28:54,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:28:54,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:28:54,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:28:54,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:28:54,138 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:28:54,138 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:28:54,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:28:54,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:28:54,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:28:54,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:28:54,139 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:28:54,140 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:28:54,144 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L10-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L10-2true [2020-07-01 12:28:54,145 INFO L796 eck$LassoCheckResult]: Loop: 5#L10-2true [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L12-2true [45] L12-2-->L10-2: Formula: (and (= (+ v_ULTIMATE.start_main_~x~0_14 (- 1)) v_ULTIMATE.start_main_~x~0_13) (<= v_ULTIMATE.start_main_~x~0_14 v_ULTIMATE.start_main_~y~0_10)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_13} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L10-2true [2020-07-01 12:28:54,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:54,152 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 12:28:54,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:54,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297073683] [2020-07-01 12:28:54,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:54,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:54,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2215, now seen corresponding path program 1 times [2020-07-01 12:28:54,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:54,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312744821] [2020-07-01 12:28:54,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,249 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:54,251 INFO L82 PathProgramCache]: Analyzing trace with hash 63719, now seen corresponding path program 1 times [2020-07-01 12:28:54,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:54,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726843711] [2020-07-01 12:28:54,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:54,265 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:54,311 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:28:54,312 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:28:54,313 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:28:54,313 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:28:54,313 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:28:54,313 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:54,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:28:54,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:28:54,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:28:54,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:28:54,314 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:28:54,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,471 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:28:54,472 INFO L404 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 [2020-07-01 12:28:54,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:54,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:54,490 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:54,490 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 [2020-07-01 12:28:54,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:54,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:54,531 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:54,531 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 [2020-07-01 12:28:54,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:54,566 INFO L160 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 [2020-07-01 12:28:54,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:28:54,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:54,644 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:28:54,646 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:28:54,646 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:28:54,646 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:28:54,647 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:28:54,647 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:28:54,647 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:54,647 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:28:54,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:28:54,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:28:54,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:28:54,649 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:28:54,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:54,737 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:28:54,743 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:54,748 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:28:54,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:28:54,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:28:54,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:28:54,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:28:54,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:28:54,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:28:54,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:54,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:28:54,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:28:54,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:28:54,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:28:54,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:28:54,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:28:54,802 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:28:54,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:54,841 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:28:54,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:28:54,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:28:54,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:28:54,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:28:54,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:28:54,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:28:54,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:28:54,850 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:28:54,855 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:28:54,855 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:54,864 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:28:54,864 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:28:54,865 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:28:54,865 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 12:28:54,900 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:28:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:28:54,949 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:28:54,951 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:28:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:28:54,964 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:28:54,964 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:28:54,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:28:55,010 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:28:55,016 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 [2020-07-01 12:28:55,017 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:28:55,049 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 12:28:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:28:55,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:28:55,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 12:28:55,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:28:55,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:55,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:28:55,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:55,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:28:55,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:55,064 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 12:28:55,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:28:55,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 12:28:55,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:28:55,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:28:55,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 12:28:55,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:28:55,071 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 12:28:55,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 12:28:55,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 12:28:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 12:28:55,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 12:28:55,099 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:28:55,100 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 12:28:55,100 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:28:55,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 12:28:55,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:28:55,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:28:55,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:28:55,101 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:28:55,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:28:55,102 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L10-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~c~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_1, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 46#L10-2 [39] L10-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 1) (<= 0 v_ULTIMATE.start_main_~x~0_11)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 42#L12-2 [2020-07-01 12:28:55,102 INFO L796 eck$LassoCheckResult]: Loop: 42#L12-2 [33] L12-2-->L12-2: Formula: (and (= v_ULTIMATE.start_main_~c~0_6 (+ v_ULTIMATE.start_main_~c~0_7 1)) (< v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~y~0_7 (* v_ULTIMATE.start_main_~y~0_8 2))) InVars {ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_7, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~c~0=v_ULTIMATE.start_main_~c~0_6, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~c~0, ULTIMATE.start_main_~y~0] 42#L12-2 [2020-07-01 12:28:55,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:55,102 INFO L82 PathProgramCache]: Analyzing trace with hash 2054, now seen corresponding path program 1 times [2020-07-01 12:28:55,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:55,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096808558] [2020-07-01 12:28:55,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,111 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:55,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:55,112 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 12:28:55,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:55,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139002593] [2020-07-01 12:28:55,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,120 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 63707, now seen corresponding path program 1 times [2020-07-01 12:28:55,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:28:55,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598436551] [2020-07-01 12:28:55,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:28:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:28:55,133 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:28:55,151 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:28:55,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:28:55,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:28:55,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:28:55,151 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:28:55,152 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:28:55,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:28:55,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:28:55,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:28:55,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:28:55,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,226 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:28:55,226 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,273 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,273 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,318 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,318 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,323 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,362 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:28:55,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,418 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,418 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=2}, {ULTIMATE.start_main_~c~0=-1}] Lambdas: [11, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,461 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 12:28:55,523 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:28:55,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:28:55,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:28:55,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:28:55,524 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:28:55,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:28:55,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:28:55,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 12:28:55,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:28:55,525 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:28:55,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,643 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:28:55,643 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,651 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,685 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,685 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,690 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,690 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_4=0} Honda state: {v_rep~unnamed0~0~false_4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,729 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:28:55,729 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:28:55,763 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:28:55,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:28:55,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:28:55,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:28:55,913 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:28:55,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:28:55,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:28:55,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:28:55,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:28:55,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:55,914 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:28:55,914 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:28:55,914 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 12:28:55,914 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:28:55,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:28:55,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:55,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:28:56,023 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:28:56,024 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:56,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:28:56,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:28:56,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:28:56,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:28:56,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:28:56,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:28:56,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:28:56,047 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:28:56,056 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 12:28:56,056 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:28:56,061 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:28:56,066 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 12:28:56,066 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:28:56,066 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-07-01 12:28:56,100 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 12:28:56,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:28:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:28:56,142 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 12:28:56,143 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:28:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:28:56,147 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 12:28:56,148 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:28:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:28:56,160 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 12:28:56,160 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 [2020-07-01 12:28:56,161 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 12:28:56,208 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 17 states and 26 transitions. Complement of second has 10 states. [2020-07-01 12:28:56,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:28:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 12:28:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 12:28:56,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 12:28:56,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:56,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:28:56,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:56,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 12:28:56,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:28:56,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 26 transitions. [2020-07-01 12:28:56,214 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:28:56,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-07-01 12:28:56,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:28:56,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:28:56,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:28:56,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:28:56,215 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:28:56,215 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:28:56,215 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:28:56,215 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:28:56,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:28:56,215 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:28:56,216 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:28:56,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:28:56 BasicIcfg [2020-07-01 12:28:56,222 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:28:56,225 INFO L168 Benchmark]: Toolchain (without parser) took 2961.23 ms. Allocated memory was 514.9 MB in the beginning and 601.9 MB in the end (delta: 87.0 MB). Free memory was 436.6 MB in the beginning and 470.7 MB in the end (delta: -34.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,226 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:28:56,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.60 ms. Allocated memory was 514.9 MB in the beginning and 561.5 MB in the end (delta: 46.7 MB). Free memory was 436.6 MB in the beginning and 531.5 MB in the end (delta: -94.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.68 ms. Allocated memory is still 561.5 MB. Free memory was 531.5 MB in the beginning and 530.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,227 INFO L168 Benchmark]: Boogie Preprocessor took 20.30 ms. Allocated memory is still 561.5 MB. Free memory was 530.0 MB in the beginning and 528.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,228 INFO L168 Benchmark]: RCFGBuilder took 237.35 ms. Allocated memory is still 561.5 MB. Free memory was 528.5 MB in the beginning and 517.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,229 INFO L168 Benchmark]: BlockEncodingV2 took 69.91 ms. Allocated memory is still 561.5 MB. Free memory was 517.1 MB in the beginning and 511.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,229 INFO L168 Benchmark]: TraceAbstraction took 148.67 ms. Allocated memory is still 561.5 MB. Free memory was 510.7 MB in the beginning and 502.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,230 INFO L168 Benchmark]: BuchiAutomizer took 2148.42 ms. Allocated memory was 561.5 MB in the beginning and 601.9 MB in the end (delta: 40.4 MB). Free memory was 502.3 MB in the beginning and 470.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:28:56,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 294.60 ms. Allocated memory was 514.9 MB in the beginning and 561.5 MB in the end (delta: 46.7 MB). Free memory was 436.6 MB in the beginning and 531.5 MB in the end (delta: -94.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.68 ms. Allocated memory is still 561.5 MB. Free memory was 531.5 MB in the beginning and 530.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.30 ms. Allocated memory is still 561.5 MB. Free memory was 530.0 MB in the beginning and 528.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * RCFGBuilder took 237.35 ms. Allocated memory is still 561.5 MB. Free memory was 528.5 MB in the beginning and 517.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.91 ms. Allocated memory is still 561.5 MB. Free memory was 517.1 MB in the beginning and 511.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.67 ms. Allocated memory is still 561.5 MB. Free memory was 510.7 MB in the beginning and 502.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2148.42 ms. Allocated memory was 561.5 MB in the beginning and 601.9 MB in the end (delta: 40.4 MB). Free memory was 502.3 MB in the beginning and 470.7 MB in the end (delta: 31.5 MB). Peak memory consumption was 71.9 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 16 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax166 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq162 hnf92 smp100 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:28:49.990 ----------------------------------------------- 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/BenchExec_run_hrLreH/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:28:56.670 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check