/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 10:47:19,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:47:19,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:47:19,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:47:19,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:47:19,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:47:19,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:47:19,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:47:19,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:47:19,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:47:19,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:47:19,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:47:19,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:47:19,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:47:19,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:47:19,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:47:19,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:47:19,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:47:19,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:47:19,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:47:19,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:47:19,130 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:47:19,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:47:19,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:47:19,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:47:19,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:47:19,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:47:19,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:47:19,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:47:19,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:47:19,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:47:19,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:47:19,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:47:19,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:47:19,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:47:19,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:47:19,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:47:19,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:47:19,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:47:19,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:47:19,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:47:19,143 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:47:19,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:47:19,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:47:19,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:47:19,159 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:47:19,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:47:19,159 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:47:19,159 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:47:19,159 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:47:19,160 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:47:19,161 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:47:19,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:47:19,161 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:47:19,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:47:19,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:47:19,162 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:47:19,162 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:47:19,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:47:19,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:47:19,162 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:47:19,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:47:19,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:47:19,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:47:19,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:47:19,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:47:19,324 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:47:19,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:47:19,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:47:19,342 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:47:19,343 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:47:19,344 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:47:19,409 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_rYzgVG/tmp/29923c564ec44b38931b3b8b951ca1ba/FLAGa0a3b029a [2020-07-01 10:47:19,741 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:47:19,742 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:47:19,748 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_rYzgVG/tmp/29923c564ec44b38931b3b8b951ca1ba/FLAGa0a3b029a [2020-07-01 10:47:20,154 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_rYzgVG/tmp/29923c564ec44b38931b3b8b951ca1ba [2020-07-01 10:47:20,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:47:20,166 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:47:20,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:47:20,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:47:20,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:47:20,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f77e174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:47:20,201 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:47:20,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:47:20,425 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:47:20,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:47:20,457 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:47:20,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20 WrapperNode [2020-07-01 10:47:20,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:47:20,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:47:20,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:47:20,459 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:47:20,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:47:20,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:47:20,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:47:20,493 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:47:20,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:47:20,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:47:20,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:47:20,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:47:20,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (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 10:47:20,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:47:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:47:20,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:47:20,725 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:47:20,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:47:20 BoogieIcfgContainer [2020-07-01 10:47:20,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:47:20,730 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:47:20,730 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:47:20,732 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:47:20,733 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:47:20" (1/1) ... [2020-07-01 10:47:20,744 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 10 edges [2020-07-01 10:47:20,746 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:47:20,747 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:47:20,747 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:47:20,747 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:47:20,749 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:47:20,750 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:47:20,750 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:47:20,764 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:47:20,771 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:47:20,776 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:47:20,778 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:47:20,795 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 10:47:20,798 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:47:20,799 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:47:20,799 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:47:20,799 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:47:20,800 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:47:20,800 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 5 edges [2020-07-01 10:47:20,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:47:20 BasicIcfg [2020-07-01 10:47:20,801 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:47:20,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:47:20,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:47:20,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:47:20,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:47:20" (1/4) ... [2020-07-01 10:47:20,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e3f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (2/4) ... [2020-07-01 10:47:20,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e3f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:47:20" (3/4) ... [2020-07-01 10:47:20,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254e3f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:47:20" (4/4) ... [2020-07-01 10:47:20,810 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:47:20,820 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:47:20,827 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:47:20,841 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:47:20,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:47:20,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:47:20,864 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:47:20,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:47:20,864 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:47:20,864 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:47:20,864 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:47:20,865 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:47:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 10:47:20,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:47:20,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 10:47:20,938 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 23) no Hoare annotation was computed. [2020-07-01 10:47:20,938 INFO L271 CegarLoopResult]: At program point L18-2(lines 18 25) the Hoare annotation is: true [2020-07-01 10:47:20,939 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:47:20,939 INFO L268 CegarLoopResult]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-07-01 10:47:20,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:47:20 BasicIcfg [2020-07-01 10:47:20,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:47:20,948 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:47:20,948 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:47:20,951 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:47:20,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:47:20,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:47:20" (1/5) ... [2020-07-01 10:47:20,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4c0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:47:20,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:47:20" (2/5) ... [2020-07-01 10:47:20,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4c0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:47:20,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:47:20" (3/5) ... [2020-07-01 10:47:20,954 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4c0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,954 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:47:20,954 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:47:20" (4/5) ... [2020-07-01 10:47:20,955 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6d4c0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:47:20, skipping insertion in model container [2020-07-01 10:47:20,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:47:20,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:47:20" (5/5) ... [2020-07-01 10:47:20,956 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:47:20,985 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:47:20,985 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:47:20,985 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:47:20,985 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:47:20,986 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:47:20,986 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:47:20,986 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:47:20,986 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:47:20,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 10:47:21,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:47:21,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:47:21,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:47:21,013 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:47:21,013 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:47:21,013 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:47:21,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 10:47:21,014 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:47:21,014 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:47:21,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:47:21,014 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:47:21,015 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:47:21,019 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L18-2true [2020-07-01 10:47:21,020 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-2true [30] L18-2-->L19: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 6#L19true [32] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 1)) (<= v_ULTIMATE.start_main_~x~0_8 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 5#L19-2true [31] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L18-2true [2020-07-01 10:47:21,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:21,027 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 10:47:21,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:21,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561414677] [2020-07-01 10:47:21,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,109 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:47:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:21,110 INFO L82 PathProgramCache]: Analyzing trace with hash 59644, now seen corresponding path program 1 times [2020-07-01 10:47:21,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:21,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518877422] [2020-07-01 10:47:21,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,128 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:47:21,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1757731, now seen corresponding path program 1 times [2020-07-01 10:47:21,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:21,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036065696] [2020-07-01 10:47:21,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:21,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:47:21,197 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:47:21,198 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:47:21,198 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:47:21,198 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:47:21,198 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:47:21,198 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:47:21,198 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:47:21,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:47:21,199 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:47:21,199 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:47:21,199 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:47:21,219 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 10:47:21,229 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 10:47:21,234 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 10:47:21,248 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 10:47:21,345 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:47:21,345 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 10:47:21,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:21,353 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:21,363 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:47:21,363 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 10:47:21,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:21,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:21,403 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:47:21,403 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 10:47:21,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:21,436 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 10:47:21,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:47:21,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:21,511 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:47:21,514 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:47:21,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:47:21,514 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:47:21,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:47:21,514 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:47:21,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:21,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:47:21,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:47:21,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:47:21,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:47:21,515 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:47:21,517 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 10:47:21,523 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 10:47:21,527 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 10:47:21,535 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 10:47:21,613 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:47:21,619 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 10:47:21,624 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 10:47:21,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:21,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:21,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:21,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:21,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:47:21,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:47:21,640 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 10:47:21,673 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 10:47:21,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:21,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:21,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:21,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:21,679 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:47:21,679 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:47:21,685 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 10:47:21,717 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 10:47:21,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:21,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:47:21,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:21,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:21,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:21,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:47:21,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:47:21,725 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:47:21,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:47:21,731 INFO L444 ModelExtractionUtils]: 0 out of 3 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 10:47:21,737 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:47:21,737 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:47:21,737 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:47:21,738 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 101 Supporting invariants [] [2020-07-01 10:47:21,772 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:47:21,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:21,819 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:47:21,820 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:21,834 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:47:21,835 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:21,855 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 10:47:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:21,891 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:47:21,892 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:21,921 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 10:47:21,927 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 10:47:21,928 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 4 states. [2020-07-01 10:47:22,023 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 4 states. Result 21 states and 27 transitions. Complement of second has 10 states. [2020-07-01 10:47:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 3 non-accepting loop states 2 accepting loop states [2020-07-01 10:47:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 10:47:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2020-07-01 10:47:22,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 10:47:22,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 10:47:22,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 23 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 10:47:22,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 27 transitions. [2020-07-01 10:47:22,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:47:22,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 16 states and 19 transitions. [2020-07-01 10:47:22,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 10:47:22,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 10:47:22,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2020-07-01 10:47:22,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:47:22,046 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2020-07-01 10:47:22,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2020-07-01 10:47:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2020-07-01 10:47:22,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 10:47:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-07-01 10:47:22,076 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 10:47:22,076 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-07-01 10:47:22,076 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:47:22,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-07-01 10:47:22,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 10:47:22,077 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:47:22,077 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:47:22,078 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-07-01 10:47:22,078 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 10:47:22,078 INFO L794 eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L18-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 81#L18-2 [30] L18-2-->L19: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 82#L19 [32] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 1)) (<= v_ULTIMATE.start_main_~x~0_8 50)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 89#L19-2 [31] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 90#L18-2 [30] L18-2-->L19: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 88#L19 [2020-07-01 10:47:22,079 INFO L796 eck$LassoCheckResult]: Loop: 88#L19 [36] L19-->L19-2: Formula: (and (> v_ULTIMATE.start_main_~x~0_9 50) (= v_ULTIMATE.start_main_~y~0_10 (+ v_ULTIMATE.start_main_~y~0_11 (- 1)))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 85#L19-2 [31] L19-2-->L18-2: Formula: (= v_ULTIMATE.start_main_~x~0_6 (+ v_ULTIMATE.start_main_~x~0_7 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 86#L18-2 [30] L18-2-->L19: Formula: (<= 0 v_ULTIMATE.start_main_~y~0_7) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7} AuxVars[] AssignedVars[] 88#L19 [2020-07-01 10:47:22,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:22,079 INFO L82 PathProgramCache]: Analyzing trace with hash 54489691, now seen corresponding path program 2 times [2020-07-01 10:47:22,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:22,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822904833] [2020-07-01 10:47:22,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:22,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:22,091 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:47:22,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:22,091 INFO L82 PathProgramCache]: Analyzing trace with hash 65378, now seen corresponding path program 1 times [2020-07-01 10:47:22,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:22,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308478741] [2020-07-01 10:47:22,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:47:22,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:47:22,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:22,101 INFO L82 PathProgramCache]: Analyzing trace with hash -195217720, now seen corresponding path program 1 times [2020-07-01 10:47:22,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:47:22,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200310703] [2020-07-01 10:47:22,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:47:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:47:22,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200310703] [2020-07-01 10:47:22,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036884855] [2020-07-01 10:47:22,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 10:47:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:22,186 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 10:47:22,187 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:22,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 10:47:22,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-01 10:47:22,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-07-01 10:47:22,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388688228] [2020-07-01 10:47:22,222 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:47:22,222 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:47:22,222 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:47:22,222 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:47:22,222 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:47:22,223 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:47:22,223 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:47:22,223 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:47:22,223 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:47:22,223 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:47:22,223 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:47:22,225 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 10:47:22,230 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 10:47:22,238 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 10:47:22,243 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 10:47:22,304 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:47:22,304 INFO L404 LassoAnalysis]: Checking for nontermination... 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 10:47:22,312 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:22,312 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:22,317 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:47:22,318 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 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 10:47:22,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:22,353 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 10:47:22,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:47:22,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:22,404 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:47:22,404 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=51} Honda state: {ULTIMATE.start_main_~x~0=51} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 0, 1] Nus: [1, 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 10:47:22,439 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:47:22,439 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 10:47:22,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:47:22,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:47:22,557 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:47:22,559 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:47:22,559 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:47:22,560 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:47:22,560 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:47:22,560 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:47:22,560 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:22,560 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:47:22,560 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:47:22,560 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:47:22,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:47:22,561 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:47:22,562 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 10:47:22,568 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 10:47:22,576 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 10:47:22,584 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 10:47:22,650 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:47:22,650 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:22,656 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 10:47:22,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:22,659 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:22,659 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:22,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:22,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:47:22,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:47:22,668 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:22,707 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 10:47:22,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:22,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:47:22,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:22,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:22,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:22,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:47:22,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:47:22,714 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:22,749 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 10:47:22,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:47:22,752 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:47:22,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:47:22,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:47:22,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:47:22,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:47:22,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:47:22,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:47:22,761 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:47:22,761 INFO L444 ModelExtractionUtils]: 1 out of 3 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:47:22,771 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:47:22,771 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:47:22,771 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:47:22,771 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 10:47:22,803 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:47:22,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:47:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:22,827 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:47:22,827 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:47:22,834 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:47:22,834 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:47:22,846 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 10:47:22,847 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:47:22,847 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 10:47:22,848 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-01 10:47:22,875 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states and 13 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 16 states and 19 transitions. Complement of second has 4 states. [2020-07-01 10:47:22,876 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 10:47:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:47:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 10:47:22,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 10:47:22,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2020-07-01 10:47:22,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2020-07-01 10:47:22,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:47:22,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2020-07-01 10:47:22,880 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:47:22,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2020-07-01 10:47:22,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:47:22,881 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:47:22,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:47:22,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:47:22,881 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:47:22,881 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:47:22,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 10:47:22,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-01 10:47:22,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-01 10:47:22,885 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2020-07-01 10:47:22,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 10:47:22,888 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-01 10:47:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-01 10:47:22,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-01 10:47:22,889 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:47:22,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-01 10:47:22,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:47:22,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:47:22,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:47:22,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:47:22,890 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:47:22,890 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:47:22,890 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:47:22,890 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:47:22,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:47:22,891 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:47:22,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:47:22,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:47:22 BasicIcfg [2020-07-01 10:47:22,896 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:47:22,899 INFO L168 Benchmark]: Toolchain (without parser) took 2731.80 ms. Allocated memory was 514.9 MB in the beginning and 588.3 MB in the end (delta: 73.4 MB). Free memory was 435.8 MB in the beginning and 479.2 MB in the end (delta: -43.4 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,899 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 455.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:47:22,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 514.9 MB in the beginning and 560.5 MB in the end (delta: 45.6 MB). Free memory was 435.8 MB in the beginning and 530.1 MB in the end (delta: -94.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,901 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 560.5 MB. Free memory was 530.1 MB in the beginning and 528.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,901 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 560.5 MB. Free memory was 528.4 MB in the beginning and 527.5 MB in the end (delta: 821.8 kB). Peak memory consumption was 821.8 kB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,902 INFO L168 Benchmark]: RCFGBuilder took 216.79 ms. Allocated memory is still 560.5 MB. Free memory was 526.7 MB in the beginning and 516.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,902 INFO L168 Benchmark]: BlockEncodingV2 took 70.96 ms. Allocated memory is still 560.5 MB. Free memory was 516.4 MB in the beginning and 511.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,903 INFO L168 Benchmark]: TraceAbstraction took 145.35 ms. Allocated memory is still 560.5 MB. Free memory was 510.6 MB in the beginning and 502.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,903 INFO L168 Benchmark]: BuchiAutomizer took 1948.67 ms. Allocated memory was 560.5 MB in the beginning and 588.3 MB in the end (delta: 27.8 MB). Free memory was 502.3 MB in the beginning and 479.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 50.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:47:22,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 10 edges - StatisticsResult: Encoded RCFG 4 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 455.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.27 ms. Allocated memory was 514.9 MB in the beginning and 560.5 MB in the end (delta: 45.6 MB). Free memory was 435.8 MB in the beginning and 530.1 MB in the end (delta: -94.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.12 ms. Allocated memory is still 560.5 MB. Free memory was 530.1 MB in the beginning and 528.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 560.5 MB. Free memory was 528.4 MB in the beginning and 527.5 MB in the end (delta: 821.8 kB). Peak memory consumption was 821.8 kB. Max. memory is 50.3 GB. * RCFGBuilder took 216.79 ms. Allocated memory is still 560.5 MB. Free memory was 526.7 MB in the beginning and 516.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.96 ms. Allocated memory is still 560.5 MB. Free memory was 516.4 MB in the beginning and 511.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.35 ms. Allocated memory is still 560.5 MB. Free memory was 510.6 MB in the beginning and 502.3 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1948.67 ms. Allocated memory was 560.5 MB in the beginning and 588.3 MB in the end (delta: 27.8 MB). Free memory was 502.3 MB in the beginning and 479.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 50.9 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: 18]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * x + 101 and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 20 SDslu, 6 SDs, 0 SdLazy, 26 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:47:16.877 ----------------------------------------------- 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_rYzgVG/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:47:23.541 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check