/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 11:07:07,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:07:07,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:07:07,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:07:07,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:07:07,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:07:07,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:07:07,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:07:07,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:07:07,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:07:07,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:07:07,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:07:07,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:07:07,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:07:07,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:07:07,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:07:07,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:07:07,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:07:07,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:07:07,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:07:07,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:07:07,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:07:07,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:07:07,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:07:07,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:07:07,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:07:07,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:07:07,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:07:07,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:07:07,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:07:07,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:07:07,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:07:07,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:07:07,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:07:07,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:07:07,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:07:07,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:07:07,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:07:07,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:07:07,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:07:07,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:07:07,230 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:07:07,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:07:07,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:07:07,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:07:07,246 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:07:07,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:07:07,246 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:07,247 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:07:07,247 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:07:07,247 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:07:07,247 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:07:07,247 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:07:07,248 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:07:07,248 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:07:07,248 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:07:07,248 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:07,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:07:07,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:07:07,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:07:07,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:07:07,249 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:07:07,249 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:07:07,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:07:07,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:07:07,250 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:07:07,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:07:07,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:07:07,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:07:07,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:07:07,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:07:07,416 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:07:07,429 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:07:07,433 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:07:07,434 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:07:07,434 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:07:07,435 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,532 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_UuFNPe/tmp/6b1d138de5364f64a8783ba212ee5f46/FLAGbdee02d7a [2020-07-01 11:07:07,866 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:07:07,867 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:07:07,874 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_UuFNPe/tmp/6b1d138de5364f64a8783ba212ee5f46/FLAGbdee02d7a [2020-07-01 11:07:09,764 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_UuFNPe/tmp/6b1d138de5364f64a8783ba212ee5f46 [2020-07-01 11:07:09,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:07:09,777 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:07:09,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:09,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:07:09,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:07:09,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:09" (1/1) ... [2020-07-01 11:07:09,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f492fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:09, skipping insertion in model container [2020-07-01 11:07:09,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:07:09" (1/1) ... [2020-07-01 11:07:09,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:07:09,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:07:10,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:10,041 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:07:10,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:07:10,072 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:07:10,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10 WrapperNode [2020-07-01 11:07:10,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:07:10,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:10,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:07:10,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:07:10,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:07:10,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:07:10,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:07:10,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:07:10,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:07:10,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:07:10,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:07:10,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:07:10,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (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 11:07:10,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:07:10,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:07:10,206 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2020-07-01 11:07:10,206 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2020-07-01 11:07:10,377 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:07:10,377 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 11:07:10,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:10 BoogieIcfgContainer [2020-07-01 11:07:10,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:07:10,382 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:07:10,382 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:07:10,384 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:07:10,385 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:10" (1/1) ... [2020-07-01 11:07:10,398 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 17 edges [2020-07-01 11:07:10,400 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:07:10,400 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:07:10,401 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:07:10,401 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:07:10,403 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:07:10,404 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:07:10,404 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:07:10,418 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:07:10,433 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:07:10,438 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:10,439 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:10,450 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:07:10,452 INFO L70 RemoveSinkStates]: Removed 4 edges and 3 locations by removing sink states [2020-07-01 11:07:10,454 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:10,454 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:10,457 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:07:10,458 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:07:10,458 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:07:10,458 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:07:10,458 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:07:10,459 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:07:10,459 INFO L313 BlockEncoder]: Encoded RCFG 8 locations, 10 edges [2020-07-01 11:07:10,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:10 BasicIcfg [2020-07-01 11:07:10,460 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:07:10,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:07:10,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:07:10,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:07:10,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:07:09" (1/4) ... [2020-07-01 11:07:10,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5268dcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (2/4) ... [2020-07-01 11:07:10,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5268dcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:10" (3/4) ... [2020-07-01 11:07:10,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5268dcc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:10" (4/4) ... [2020-07-01 11:07:10,468 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:10,479 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:07:10,486 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:07:10,500 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:07:10,524 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:07:10,524 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:07:10,524 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:10,525 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:10,525 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:10,525 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:07:10,525 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:10,525 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:07:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-01 11:07:10,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:07:10,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-07-01 11:07:10,614 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:07:10,615 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-01 11:07:10,615 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-01 11:07:10,615 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-07-01 11:07:10,615 INFO L268 CegarLoopResult]: For program point r1EXIT(lines 13 19) no Hoare annotation was computed. [2020-07-01 11:07:10,615 INFO L268 CegarLoopResult]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-07-01 11:07:10,616 INFO L271 CegarLoopResult]: At program point r1ENTRY(lines 13 19) the Hoare annotation is: true [2020-07-01 11:07:10,616 INFO L268 CegarLoopResult]: For program point r1FINAL(lines 13 19) no Hoare annotation was computed. [2020-07-01 11:07:10,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:10 BasicIcfg [2020-07-01 11:07:10,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:07:10,620 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:07:10,620 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:07:10,624 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:07:10,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:10,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:07:09" (1/5) ... [2020-07-01 11:07:10,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763c0681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:10,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:07:10" (2/5) ... [2020-07-01 11:07:10,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763c0681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:10,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:07:10" (3/5) ... [2020-07-01 11:07:10,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763c0681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:10,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:07:10" (4/5) ... [2020-07-01 11:07:10,628 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@763c0681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:10, skipping insertion in model container [2020-07-01 11:07:10,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:07:10,628 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:07:10" (5/5) ... [2020-07-01 11:07:10,629 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:07:10,659 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:07:10,659 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:07:10,659 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:07:10,659 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:07:10,659 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:07:10,659 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:07:10,660 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:07:10,660 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:07:10,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 11:07:10,681 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:10,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:10,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:10,688 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:07:10,688 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:10,688 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:07:10,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-01 11:07:10,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:10,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:10,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:10,690 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:07:10,690 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:10,695 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (<= 0 v_ULTIMATE.start_main_~ls~0_6) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 5#L22true [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 10#r1ENTRYtrue [2020-07-01 11:07:10,696 INFO L796 eck$LassoCheckResult]: Loop: 10#r1ENTRYtrue [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 4#L14true [48] L14-->L17: Formula: (< 0 v_r1_~ls_3) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 7#L17true [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1)) (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1)))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 10#r1ENTRYtrue [2020-07-01 11:07:10,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,702 INFO L82 PathProgramCache]: Analyzing trace with hash 2612, now seen corresponding path program 1 times [2020-07-01 11:07:10,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612118599] [2020-07-01 11:07:10,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,786 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,787 INFO L82 PathProgramCache]: Analyzing trace with hash 63022, now seen corresponding path program 1 times [2020-07-01 11:07:10,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306567634] [2020-07-01 11:07:10,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,804 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:10,806 INFO L82 PathProgramCache]: Analyzing trace with hash 77847323, now seen corresponding path program 1 times [2020-07-01 11:07:10,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:10,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062518531] [2020-07-01 11:07:10,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:10,828 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:10,926 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:10,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:10,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:10,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:10,927 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:10,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:10,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:10,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:10,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:07:10,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:10,928 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:10,944 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 11:07:10,952 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 11:07:10,956 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 11:07:10,972 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 11:07:10,976 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 11:07:11,051 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:11,052 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 11:07:11,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,070 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,071 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_~a=0} Honda state: {r1_~a=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 11:07:11,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:11,112 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#res=0} Honda state: {r1_#res=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 11:07:11,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:11,146 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 11:07:11,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:11,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:11,395 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:07:11,399 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:11,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:11,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:11,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:11,399 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:07:11,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:07:11,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:11,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:11,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:07:11,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:11,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:11,402 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 11:07:11,406 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 11:07:11,409 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 11:07:11,420 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 11:07:11,424 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 11:07:11,472 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:11,478 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 11:07:11,484 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 11:07:11,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:11,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:11,491 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:11,494 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 11:07:11,528 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 11:07:11,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:11,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:11,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:11,535 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 11:07:11,571 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 11:07:11,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:07:11,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:07:11,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:07:11,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:07:11,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:07:11,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:07:11,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:07:11,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:07:11,586 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:07:11,586 INFO L444 ModelExtractionUtils]: 1 out of 4 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 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 11:07:11,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:07:11,592 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:07:11,592 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:07:11,593 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(r1_#in~ls) = 1*r1_#in~ls Supporting invariants [] [2020-07-01 11:07:11,627 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:07:11,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:11,676 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:07:11,678 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:11,699 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-01 11:07:11,700 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:07:11,722 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 11:07:11,743 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:07:11,748 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 11:07:11,750 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states. Second operand 4 states. [2020-07-01 11:07:11,874 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states.. Second operand 4 states. Result 57 states and 82 transitions. Complement of second has 24 states. [2020-07-01 11:07:11,875 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 11:07:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:07:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 23 transitions. [2020-07-01 11:07:11,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:07:11,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:07:11,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 23 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:07:11,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:07:11,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 82 transitions. [2020-07-01 11:07:11,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:11,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 21 states and 26 transitions. [2020-07-01 11:07:11,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:07:11,907 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2020-07-01 11:07:11,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2020-07-01 11:07:11,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:11,908 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-07-01 11:07:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2020-07-01 11:07:11,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 11. [2020-07-01 11:07:11,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-01 11:07:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-07-01 11:07:11,940 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 11:07:11,940 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-07-01 11:07:11,940 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:07:11,940 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-07-01 11:07:11,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:11,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:11,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:11,942 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:07:11,942 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:11,942 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRY [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (<= 0 v_ULTIMATE.start_main_~ls~0_6) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 131#L22 [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 137#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 132#L14 [2020-07-01 11:07:11,942 INFO L796 eck$LassoCheckResult]: Loop: 132#L14 [47] L14-->L17: Formula: (> 0 v_r1_~ls_3) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 133#L17 [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1)) (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1)))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 138#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 132#L14 [2020-07-01 11:07:11,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,943 INFO L82 PathProgramCache]: Analyzing trace with hash 81005, now seen corresponding path program 1 times [2020-07-01 11:07:11,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969353250] [2020-07-01 11:07:11,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,954 INFO L82 PathProgramCache]: Analyzing trace with hash 75921, now seen corresponding path program 1 times [2020-07-01 11:07:11,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828381527] [2020-07-01 11:07:11,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:11,965 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:11,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1881701211, now seen corresponding path program 1 times [2020-07-01 11:07:11,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:11,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737576497] [2020-07-01 11:07:11,966 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:07:12,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737576497] [2020-07-01 11:07:12,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:07:12,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-01 11:07:12,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935482771] [2020-07-01 11:07:12,082 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:12,082 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:12,082 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:12,082 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:12,083 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:12,083 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:12,083 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:12,083 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:12,083 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:07:12,083 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:12,083 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:12,085 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 11:07:12,100 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 11:07:12,110 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 11:07:12,188 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:12,188 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:12,194 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:12,194 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:07:12,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:12,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:14,770 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:14,770 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#in~ls=-1, r1_#in~a=2, r1_~ls=-3, r1_~a=7} Honda state: {r1_#in~ls=-1, r1_#in~a=2, r1_~ls=-3, r1_~a=7} Generalized eigenvectors: [{r1_#in~ls=-2, r1_#in~a=5, r1_~ls=0, r1_~a=0}, {r1_#in~ls=-1, r1_#in~a=-1, r1_~ls=-1, r1_~a=-1}, {r1_#in~ls=0, r1_#in~a=-1, r1_~ls=0, r1_~a=-1}] Lambdas: [0, 1, 1] Nus: [0, 1] 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 11:07:14,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:14,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:14,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:14,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#t~ret0=0} Honda state: {r1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:07:14,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:14,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:14,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:14,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#res=0} Honda state: {r1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:14,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:07:14,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:07:14,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:07:14,885 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-07-01 11:07:14,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:07:14,916 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-07-01 11:07:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:07:14,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-07-01 11:07:14,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:14,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 15 transitions. [2020-07-01 11:07:14,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 11:07:14,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-01 11:07:14,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2020-07-01 11:07:14,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:07:14,922 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-07-01 11:07:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2020-07-01 11:07:14,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-01 11:07:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 11:07:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-07-01 11:07:14,924 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-01 11:07:14,924 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-07-01 11:07:14,925 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:07:14,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2020-07-01 11:07:14,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:07:14,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:07:14,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:07:14,926 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 11:07:14,926 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:07:14,926 INFO L794 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY [52] ULTIMATE.startENTRY-->L22: Formula: (and (= v_ULTIMATE.start_rev_~ls_5 |v_ULTIMATE.start_rev_#in~ls_2|) (<= 0 v_ULTIMATE.start_main_~ls~0_6) (= |v_ULTIMATE.start_rev_#in~ls_2| v_ULTIMATE.start_main_~ls~0_6)) InVars {} OutVars{ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_5, ULTIMATE.start_rev_#res=|v_ULTIMATE.start_rev_#res_5|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_rev_#in~ls=|v_ULTIMATE.start_rev_#in~ls_2|, ULTIMATE.start_rev_#t~ret1=|v_ULTIMATE.start_rev_#t~ret1_8|, ULTIMATE.start_main_~ls~0=v_ULTIMATE.start_main_~ls~0_6, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_5|} AuxVars[] AssignedVars[ULTIMATE.start_rev_~ls, ULTIMATE.start_rev_#res, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_rev_#in~ls, ULTIMATE.start_rev_#t~ret1, ULTIMATE.start_main_~ls~0, ULTIMATE.start_main_#t~ret3] 168#L22 [39] L22-->r1ENTRY: Formula: (and (= |v_r1_#in~lsInParam_1| v_ULTIMATE.start_rev_~ls_4) (= |v_r1_#in~aInParam_1| 0)) InVars {ULTIMATE.start_rev_~ls=v_ULTIMATE.start_rev_~ls_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_1|, r1_#in~ls=|v_r1_#in~lsInParam_1|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 173#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 172#L14 [48] L14-->L17: Formula: (< 0 v_r1_~ls_3) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 170#L17 [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1)) (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1)))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 178#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 169#L14 [2020-07-01 11:07:14,927 INFO L796 eck$LassoCheckResult]: Loop: 169#L14 [47] L14-->L17: Formula: (> 0 v_r1_~ls_3) InVars {r1_~ls=v_r1_~ls_3} OutVars{r1_~ls=v_r1_~ls_3} AuxVars[] AssignedVars[] 171#L17 [30] L17-->r1ENTRY: Formula: (and (= |v_r1_#in~aInParam_2| (+ v_r1_~a_4 v_r1_~ls_5 1)) (= |v_r1_#in~lsInParam_2| (+ v_r1_~ls_5 (- 1)))) InVars {r1_~ls=v_r1_~ls_5, r1_~a=v_r1_~a_4} OutVars{r1_#in~a=|v_r1_#in~aInParam_2|, r1_#in~ls=|v_r1_#in~lsInParam_2|} AuxVars[] AssignedVars[r1_#in~a, r1_#in~ls]< 174#r1ENTRY [33] r1ENTRY-->L14: Formula: (and (= v_r1_~a_1 |v_r1_#in~a_1|) (= v_r1_~ls_1 |v_r1_#in~ls_1|)) InVars {r1_#in~a=|v_r1_#in~a_1|, r1_#in~ls=|v_r1_#in~ls_1|} OutVars{r1_#in~ls=|v_r1_#in~ls_1|, r1_#in~a=|v_r1_#in~a_1|, r1_~ls=v_r1_~ls_1, r1_~a=v_r1_~a_1} AuxVars[] AssignedVars[r1_~a, r1_~ls] 169#L14 [2020-07-01 11:07:14,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:14,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1881700250, now seen corresponding path program 2 times [2020-07-01 11:07:14,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:14,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688125571] [2020-07-01 11:07:14,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:14,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:14,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:14,945 INFO L82 PathProgramCache]: Analyzing trace with hash 75921, now seen corresponding path program 2 times [2020-07-01 11:07:14,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:14,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655873498] [2020-07-01 11:07:14,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:07:14,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:07:14,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:07:14,954 INFO L82 PathProgramCache]: Analyzing trace with hash 181045772, now seen corresponding path program 1 times [2020-07-01 11:07:14,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:07:14,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346286068] [2020-07-01 11:07:14,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:07:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:07:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:07:14,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346286068] [2020-07-01 11:07:14,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 11:07:14,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-01 11:07:14,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587020871] [2020-07-01 11:07:15,050 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:07:15,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:07:15,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:07:15,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:07:15,051 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:07:15,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:15,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:07:15,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:07:15,052 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:07:15,052 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:07:15,052 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:07:15,053 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 11:07:15,056 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 11:07:15,072 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 11:07:15,120 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:07:15,120 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:07:15,127 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:15,127 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:15,131 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:15,131 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#t~ret0=0} Honda state: {r1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:07:15,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:15,164 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:15,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:07:15,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:18,011 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:18,011 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#in~ls=-1, r1_#in~a=3, r1_~ls=-1, r1_~a=3} Honda state: {r1_#in~ls=-1, r1_#in~a=3, r1_~ls=-1, r1_~a=3} Generalized eigenvectors: [{r1_#in~ls=-1, r1_#in~a=1, r1_~ls=-1, r1_~a=1}, {r1_#in~ls=0, r1_#in~a=-1, r1_~ls=0, r1_~a=-1}, {r1_#in~ls=0, r1_#in~a=0, r1_~ls=0, r1_~a=0}] Lambdas: [1, 1, 7] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:07:18,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:07:18,048 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:07:18,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:07:18,052 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {r1_#res=0} Honda state: {r1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:07:18,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 11:07:18,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-01 11:07:18,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-01 11:07:18,082 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-07-01 11:07:18,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 11:07:18,115 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-07-01 11:07:18,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-01 11:07:18,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 9 transitions. [2020-07-01 11:07:18,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:07:18,118 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2020-07-01 11:07:18,118 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:07:18,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:07:18,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:07:18,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:07:18,119 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:18,119 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:18,119 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:07:18,120 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:07:18,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:07:18,120 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:07:18,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:07:18,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:07:18 BasicIcfg [2020-07-01 11:07:18,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:07:18,128 INFO L168 Benchmark]: Toolchain (without parser) took 8350.95 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 561.6 MB in the beginning and 389.6 MB in the end (delta: 172.0 MB). Peak memory consumption was 201.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,129 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:07:18,129 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.22 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 561.6 MB in the beginning and 643.4 MB in the end (delta: -81.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,130 INFO L168 Benchmark]: Boogie Preprocessor took 18.03 ms. Allocated memory is still 679.0 MB. Free memory was 642.1 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,131 INFO L168 Benchmark]: RCFGBuilder took 253.43 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 625.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,132 INFO L168 Benchmark]: BlockEncodingV2 took 77.91 ms. Allocated memory is still 679.0 MB. Free memory was 625.0 MB in the beginning and 619.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,132 INFO L168 Benchmark]: TraceAbstraction took 158.73 ms. Allocated memory is still 679.0 MB. Free memory was 618.2 MB in the beginning and 608.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,133 INFO L168 Benchmark]: BuchiAutomizer took 7505.69 ms. Allocated memory is still 679.0 MB. Free memory was 608.7 MB in the beginning and 389.6 MB in the end (delta: 219.1 MB). Peak memory consumption was 219.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:07:18,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 17 edges - StatisticsResult: Encoded RCFG 8 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.22 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 561.6 MB in the beginning and 643.4 MB in the end (delta: -81.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.89 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.03 ms. Allocated memory is still 679.0 MB. Free memory was 642.1 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 253.43 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 625.0 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.91 ms. Allocated memory is still 679.0 MB. Free memory was 625.0 MB in the beginning and 619.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 158.73 ms. Allocated memory is still 679.0 MB. Free memory was 618.2 MB in the beginning and 608.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 7505.69 ms. Allocated memory is still 679.0 MB. Free memory was 608.7 MB in the beginning and 389.6 MB in the end (delta: 219.1 MB). Peak memory consumption was 219.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 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=8occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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 (2 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function \old(ls) and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 7.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 26 SDslu, 24 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq183 hnf92 smp100 dnf100 smp100 tf106 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:07:04.969 ----------------------------------------------- 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_UuFNPe/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:07:18.587 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check