/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 12:16:07,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:16:07,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:16:07,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:16:07,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:16:07,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:16:07,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:16:07,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:16:07,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:16:07,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:16:07,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:16:07,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:16:07,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:16:07,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:16:07,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:16:07,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:16:07,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:16:07,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:16:07,140 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:16:07,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:16:07,143 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:16:07,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:16:07,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:16:07,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:16:07,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:16:07,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:16:07,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:16:07,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:16:07,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:16:07,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:16:07,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:16:07,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:16:07,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:16:07,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:16:07,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:16:07,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:16:07,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:16:07,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:16:07,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:16:07,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:16:07,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:16:07,157 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:16:07,171 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:16:07,171 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:16:07,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:16:07,173 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:16:07,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:16:07,173 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:16:07,173 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:16:07,174 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:16:07,174 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:16:07,174 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:16:07,174 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:16:07,174 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:16:07,174 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:16:07,175 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:16:07,175 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:16:07,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:16:07,175 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:16:07,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:16:07,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:16:07,176 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:16:07,176 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:16:07,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:16:07,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:16:07,176 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:16:07,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:16:07,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:16:07,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:16:07,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:16:07,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:16:07,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:16:07,356 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:16:07,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:16:07,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:16:07,361 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:16:07,362 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:16:07,429 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Y3ysSz/tmp/a88d1cde45cd4928b399798ae32de4ff/FLAGb582b781c [2020-07-01 12:16:07,757 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:16:07,758 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:16:07,765 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_Y3ysSz/tmp/a88d1cde45cd4928b399798ae32de4ff/FLAGb582b781c [2020-07-01 12:16:08,170 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_Y3ysSz/tmp/a88d1cde45cd4928b399798ae32de4ff [2020-07-01 12:16:08,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:16:08,182 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:16:08,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:16:08,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:16:08,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:16:08,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a314409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08, skipping insertion in model container [2020-07-01 12:16:08,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:16:08,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:16:08,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:16:08,455 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:16:08,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:16:08,487 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:16:08,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08 WrapperNode [2020-07-01 12:16:08,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:16:08,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:16:08,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:16:08,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:16:08,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:16:08,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:16:08,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:16:08,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:16:08,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:16:08,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:16:08,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:16:08,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:16:08,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (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 12:16:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-07-01 12:16:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-07-01 12:16:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:16:08,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:16:08,786 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:16:08,786 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:16:08,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:16:08 BoogieIcfgContainer [2020-07-01 12:16:08,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:16:08,791 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:16:08,791 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:16:08,793 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:16:08,794 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:16:08" (1/1) ... [2020-07-01 12:16:08,810 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 18 edges [2020-07-01 12:16:08,812 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:16:08,813 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:16:08,813 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:16:08,814 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:16:08,815 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:16:08,816 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:16:08,816 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:16:08,831 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:16:08,838 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:16:08,843 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:16:08,845 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:16:08,853 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:16:08,855 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-07-01 12:16:08,857 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:16:08,857 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:16:08,858 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:16:08,858 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:16:08,858 INFO L313 BlockEncoder]: Encoded RCFG 11 locations, 14 edges [2020-07-01 12:16:08,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:16:08 BasicIcfg [2020-07-01 12:16:08,859 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:16:08,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:16:08,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:16:08,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:16:08,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:16:08" (1/4) ... [2020-07-01 12:16:08,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3218389e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:16:08, skipping insertion in model container [2020-07-01 12:16:08,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (2/4) ... [2020-07-01 12:16:08,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3218389e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:16:08, skipping insertion in model container [2020-07-01 12:16:08,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:16:08" (3/4) ... [2020-07-01 12:16:08,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3218389e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:16:08, skipping insertion in model container [2020-07-01 12:16:08,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:16:08" (4/4) ... [2020-07-01 12:16:08,868 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:16:08,878 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:16:08,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:16:08,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:16:08,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:16:08,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:16:08,927 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:16:08,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:16:08,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:16:08,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:16:08,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:16:08,928 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:16:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-07-01 12:16:08,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:16:08,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-07-01 12:16:09,018 INFO L271 CegarLoopResult]: At program point loopENTRY(lines 37 43) the Hoare annotation is: true [2020-07-01 12:16:09,018 INFO L271 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-07-01 12:16:09,018 INFO L268 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-07-01 12:16:09,019 INFO L268 CegarLoopResult]: For program point L38-1(lines 37 43) no Hoare annotation was computed. [2020-07-01 12:16:09,019 INFO L268 CegarLoopResult]: For program point loopEXIT(lines 37 43) no Hoare annotation was computed. [2020-07-01 12:16:09,019 INFO L271 CegarLoopResult]: At program point L34-1(lines 29 35) the Hoare annotation is: true [2020-07-01 12:16:09,019 INFO L268 CegarLoopResult]: For program point L31(lines 31 34) no Hoare annotation was computed. [2020-07-01 12:16:09,019 INFO L268 CegarLoopResult]: For program point L31-1(lines 31 34) no Hoare annotation was computed. [2020-07-01 12:16:09,019 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:16:09,020 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-01 12:16:09,020 INFO L271 CegarLoopResult]: At program point L34(lines 29 35) the Hoare annotation is: true [2020-07-01 12:16:09,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:16:09 BasicIcfg [2020-07-01 12:16:09,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:16:09,030 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:16:09,030 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:16:09,034 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:16:09,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:16:09,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:16:08" (1/5) ... [2020-07-01 12:16:09,036 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66bc3ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:16:09, skipping insertion in model container [2020-07-01 12:16:09,036 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:16:09,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:16:08" (2/5) ... [2020-07-01 12:16:09,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66bc3ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:16:09, skipping insertion in model container [2020-07-01 12:16:09,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:16:09,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:16:08" (3/5) ... [2020-07-01 12:16:09,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66bc3ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:16:09, skipping insertion in model container [2020-07-01 12:16:09,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:16:09,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:16:08" (4/5) ... [2020-07-01 12:16:09,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66bc3ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:16:09, skipping insertion in model container [2020-07-01 12:16:09,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:16:09,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:16:09" (5/5) ... [2020-07-01 12:16:09,040 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:16:09,067 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:16:09,068 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:16:09,068 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:16:09,068 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:16:09,068 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:16:09,068 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:16:09,068 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:16:09,069 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:16:09,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 12:16:09,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:16:09,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:16:09,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:16:09,098 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 12:16:09,098 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:16:09,098 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:16:09,098 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-07-01 12:16:09,100 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:16:09,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:16:09,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:16:09,100 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-07-01 12:16:09,101 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:16:09,106 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue [41] ULTIMATE.startENTRY-->L31: 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_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) 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_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_6|, ULTIMATE.start_random_#t~nondet5=|v_ULTIMATE.start_random_#t~nondet5_3|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_5, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_3|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_3|} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |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_random_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res, ULTIMATE.start_main_#t~ret4] 3#L31true [38] L31-->L34: Formula: (and (= |v_ULTIMATE.start_random_#res_7| (- v_ULTIMATE.start_random_~x~1_7)) (< v_ULTIMATE.start_random_~x~1_7 0)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_7, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_7|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 11#L34true [46] L34-->L31-1: Formula: (= |v_ULTIMATE.start_main_#t~ret3_1| |v_ULTIMATE.start_random_#res_2|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_2|} OutVars{ULTIMATE.start_random_#t~nondet5=|v_ULTIMATE.start_random_#t~nondet5_1|, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|, ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_1, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_random_#t~nondet5, ULTIMATE.start_random_~x~1, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_random_#res] 12#L31-1true [53] L31-1-->L34-1: Formula: (and (>= v_ULTIMATE.start_random_~x~1_4 0) (= |v_ULTIMATE.start_random_#res_4| v_ULTIMATE.start_random_~x~1_4)) InVars {ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_4} OutVars{ULTIMATE.start_random_~x~1=v_ULTIMATE.start_random_~x~1_4, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_4|} AuxVars[] AssignedVars[ULTIMATE.start_random_#res] 8#L34-1true [43] L34-1-->L25: Formula: (= |v_ULTIMATE.start_main_#t~ret4_1| |v_ULTIMATE.start_random_#res_5|) InVars {ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_5|} OutVars{ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_1|, ULTIMATE.start_random_#res=|v_ULTIMATE.start_random_#res_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret4] 13#L25true [49] L25-->loopENTRY: Formula: (and (= |v_loop_#in~aInParam_2| |v_ULTIMATE.start_main_#t~ret3_5|) (= |v_loop_#in~bInParam_2| |v_ULTIMATE.start_main_#t~ret4_5|)) InVars {ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|, ULTIMATE.start_main_#t~ret4=|v_ULTIMATE.start_main_#t~ret4_5|} OutVars{loop_#in~b=|v_loop_#in~bInParam_2|, loop_#in~a=|v_loop_#in~aInParam_2|} AuxVars[] AssignedVars[loop_#in~b, loop_#in~a]< 5#loopENTRYtrue [2020-07-01 12:16:09,107 INFO L796 eck$LassoCheckResult]: Loop: 5#loopENTRYtrue [35] loopENTRY-->L38: Formula: (and (= v_loop_~b_1 |v_loop_#in~b_1|) (= v_loop_~a_1 |v_loop_#in~a_1|)) InVars {loop_#in~b=|v_loop_#in~b_1|, loop_#in~a=|v_loop_#in~a_1|} OutVars{loop_#in~b=|v_loop_#in~b_1|, loop_#in~a=|v_loop_#in~a_1|, loop_~b=v_loop_~b_1, loop_~a=v_loop_~a_1} AuxVars[] AssignedVars[loop_~b, loop_~a] 10#L38true [44] L38-->L41: Formula: (and (= v_loop_~a_2 (+ v_loop_~b_3 v_loop_~a_3)) (= v_loop_~b_2 (+ v_loop_~b_3 (- 1))) (< 0 v_loop_~a_3)) InVars {loop_~b=v_loop_~b_3, loop_~a=v_loop_~a_3} OutVars{loop_~b=v_loop_~b_2, loop_~a=v_loop_~a_2} AuxVars[] AssignedVars[loop_~b, loop_~a] 4#L41true [34] L41-->loopENTRY: Formula: (and (= |v_loop_#in~bInParam_1| v_loop_~b_5) (= |v_loop_#in~aInParam_1| v_loop_~a_6)) InVars {loop_~b=v_loop_~b_5, loop_~a=v_loop_~a_6} OutVars{loop_#in~b=|v_loop_#in~bInParam_1|, loop_#in~a=|v_loop_#in~aInParam_1|} AuxVars[] AssignedVars[loop_#in~b, loop_#in~a]< 5#loopENTRYtrue [2020-07-01 12:16:09,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:16:09,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2097815371, now seen corresponding path program 1 times [2020-07-01 12:16:09,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:16:09,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841018284] [2020-07-01 12:16:09,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:16:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:16:09,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:16:09,213 INFO L82 PathProgramCache]: Analyzing trace with hash 64824, now seen corresponding path program 1 times [2020-07-01 12:16:09,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:16:09,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213669312] [2020-07-01 12:16:09,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:16:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,228 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:16:09,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:16:09,230 INFO L82 PathProgramCache]: Analyzing trace with hash -51371602, now seen corresponding path program 1 times [2020-07-01 12:16:09,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:16:09,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080885107] [2020-07-01 12:16:09,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:16:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:16:09,260 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:16:09,374 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:16:09,375 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:16:09,375 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:16:09,375 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:16:09,375 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:16:09,376 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:16:09,376 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:16:09,376 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:16:09,376 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:16:09,376 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:16:09,376 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:16:09,394 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 12:16:09,403 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 12:16:09,405 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 12:16:09,475 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:16:09,476 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 12:16:09,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:16:09,483 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:16:09,492 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:16:09,492 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {loop_~b=0} Honda state: {loop_~b=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 12:16:09,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:16:09,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:16:09,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:16:09,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {loop_~a=0} Honda state: {loop_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:16:09,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:16:09,564 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 12:16:09,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:16:09,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:16:09,749 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:16:09,752 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:16:09,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:16:09,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:16:09,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:16:09,752 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:16:09,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:16:09,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:16:09,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:16:09,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:16:09,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:16:09,753 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:16:09,755 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 12:16:09,760 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 12:16:09,763 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 12:16:09,809 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:16:09,814 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 12:16:09,819 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 12:16:09,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:09,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:09,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:09,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:09,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:16:09,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:16:09,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:09,827 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 12:16:09,860 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 12:16:09,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:09,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:09,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:09,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:09,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:16:09,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:16:09,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:09,866 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 12:16:09,898 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 12:16:09,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:09,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:09,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:09,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:09,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:16:09,903 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:16:09,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:09,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:16:09,937 INFO L489 LassoAnalysis]: Using template '2-nested'. 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 12:16:09,940 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 12:16:09,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:09,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:09,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:09,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:09,943 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:16:09,944 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:16:09,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:09,946 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 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:16:09,979 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 12:16:09,981 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:09,981 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:09,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:09,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:09,982 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:16:09,983 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:16:09,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:09,986 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:16:10,018 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 12:16:10,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:16:10,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:16:10,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:16:10,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:16:10,021 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:16:10,024 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:16:10,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:16:10,029 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:16:10,038 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:16:10,038 INFO L444 ModelExtractionUtils]: 2 out of 7 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 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:16:10,044 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:16:10,044 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:16:10,044 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:16:10,045 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*loop_#in~b + 1 f1 = 2*loop_#in~a Supporting invariants [] [2020-07-01 12:16:10,079 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:16:10,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:16:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:16:10,155 INFO L264 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:16:10,157 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:16:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:16:10,187 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-01 12:16:10,188 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:16:10,201 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:16:10,206 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:16:10,208 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:16:10,210 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-01 12:16:10,250 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-01 12:16:10,253 INFO L477 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-01 12:16:10,293 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 12:16:10,935 INFO L98 LoopCannibalizer]: 21 predicates before loop cannibalization 21 predicates after loop cannibalization [2020-07-01 12:16:10,940 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 21 loop predicates [2020-07-01 12:16:10,942 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 11 states. Second operand 4 states. [2020-07-01 12:16:11,292 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2020-07-01 12:16:11,371 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 11 states.. Second operand 4 states. Result 40 states and 46 transitions. Complement of second has 19 states. [2020-07-01 12:16:11,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2020-07-01 12:16:11,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:16:11,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2020-07-01 12:16:11,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 12:16:11,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:16:11,379 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 9 letters. Loop has 3 letters. [2020-07-01 12:16:11,379 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:16:11,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 6 letters. Loop has 6 letters. [2020-07-01 12:16:11,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:16:11,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 46 transitions. [2020-07-01 12:16:11,395 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:16:11,398 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2020-07-01 12:16:11,399 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:16:11,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:16:11,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:16:11,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:16:11,400 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:16:11,400 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:16:11,400 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:16:11,400 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:16:11,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:16:11,400 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:16:11,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:16:11,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:16:11 BasicIcfg [2020-07-01 12:16:11,406 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:16:11,408 INFO L168 Benchmark]: Toolchain (without parser) took 3225.70 ms. Allocated memory was 649.6 MB in the beginning and 754.5 MB in the end (delta: 104.9 MB). Free memory was 561.6 MB in the beginning and 682.5 MB in the end (delta: -120.9 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:16:11,408 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:16:11,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.92 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 561.6 MB in the beginning and 653.4 MB in the end (delta: -91.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,410 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 690.0 MB. Free memory was 653.4 MB in the beginning and 650.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,410 INFO L168 Benchmark]: Boogie Preprocessor took 17.97 ms. Allocated memory is still 690.0 MB. Free memory was 650.7 MB in the beginning and 649.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,411 INFO L168 Benchmark]: RCFGBuilder took 246.86 ms. Allocated memory is still 690.0 MB. Free memory was 649.3 MB in the beginning and 633.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,411 INFO L168 Benchmark]: BlockEncodingV2 took 68.47 ms. Allocated memory is still 690.0 MB. Free memory was 633.7 MB in the beginning and 629.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,412 INFO L168 Benchmark]: TraceAbstraction took 168.90 ms. Allocated memory is still 690.0 MB. Free memory was 628.3 MB in the beginning and 618.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:16:11,412 INFO L168 Benchmark]: BuchiAutomizer took 2376.28 ms. Allocated memory was 690.0 MB in the beginning and 754.5 MB in the end (delta: 64.5 MB). Free memory was 617.5 MB in the beginning and 682.5 MB in the end (delta: -65.0 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:16:11,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 18 edges - StatisticsResult: Encoded RCFG 11 locations, 14 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 304.92 ms. Allocated memory was 649.6 MB in the beginning and 690.0 MB in the end (delta: 40.4 MB). Free memory was 561.6 MB in the beginning and 653.4 MB in the end (delta: -91.8 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 690.0 MB. Free memory was 653.4 MB in the beginning and 650.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.97 ms. Allocated memory is still 690.0 MB. Free memory was 650.7 MB in the beginning and 649.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 246.86 ms. Allocated memory is still 690.0 MB. Free memory was 649.3 MB in the beginning and 633.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 68.47 ms. Allocated memory is still 690.0 MB. Free memory was 633.7 MB in the beginning and 629.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 168.90 ms. Allocated memory is still 690.0 MB. Free memory was 628.3 MB in the beginning and 618.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2376.28 ms. Allocated memory was 690.0 MB in the beginning and 754.5 MB in the end (delta: 64.5 MB). Free memory was 617.5 MB in the beginning and 682.5 MB in the end (delta: -65.0 MB). There was no memory consumed. 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: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 11 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=11occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has 2-nested ranking function (if 2 * \old(b) + 1 > 0 then 1 else 0), (if 2 * \old(b) + 1 > 0 then 2 * \old(b) + 1 else 2 * \old(a)) and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 44 SDslu, 14 SDs, 0 SdLazy, 36 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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 12:16:04.906 ----------------------------------------------- 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_Y3ysSz/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:16:11.653 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check