/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:24:53,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:24:53,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:24:53,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:24:53,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:24:53,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:24:53,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:24:53,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:24:53,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:24:53,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:24:53,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:24:53,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:24:53,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:24:53,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:24:53,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:24:53,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:24:53,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:24:53,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:24:53,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:24:53,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:24:53,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:24:53,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:24:53,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:24:53,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:24:53,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:24:53,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:24:53,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:24:53,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:24:53,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:24:53,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:24:53,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:24:53,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:24:53,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:24:53,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:24:53,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:24:53,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:24:53,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:24:53,273 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:24:53,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:24:53,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:24:53,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:24:53,276 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:24:53,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:24:53,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:24:53,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:24:53,291 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:24:53,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:24:53,292 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:24:53,292 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:24:53,292 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:24:53,292 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:24:53,293 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:24:53,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:24:53,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:24:53,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:24:53,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:24:53,294 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:24:53,294 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:24:53,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:24:53,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:24:53,295 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:24:53,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:24:53,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:24:53,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:24:53,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:24:53,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:24:53,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:24:53,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:24:53,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:24:53,475 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:24:53,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:24:53,476 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:24:53,541 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_xPjW1Y/tmp/b62bd545bca0478fa36686eb75c7a9f4/FLAG64fd455e1 [2020-07-01 11:24:53,871 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:24:53,872 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:24:53,879 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_xPjW1Y/tmp/b62bd545bca0478fa36686eb75c7a9f4/FLAG64fd455e1 [2020-07-01 11:24:54,562 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_xPjW1Y/tmp/b62bd545bca0478fa36686eb75c7a9f4 [2020-07-01 11:24:54,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:24:54,574 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:24:54,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:24:54,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:24:54,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:24:54,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401f47fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54, skipping insertion in model container [2020-07-01 11:24:54,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:24:54,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:24:54,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:24:54,835 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:24:54,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:24:54,865 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:24:54,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54 WrapperNode [2020-07-01 11:24:54,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:24:54,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:24:54,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:24:54,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:24:54,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:24:54,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:24:54,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:24:54,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:24:54,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... [2020-07-01 11:24:54,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:24:54,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:24:54,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:24:54,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:24:54,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (1/1) ... No working directory specified, using /export/starexec/sandbox/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 11:24:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:24:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:24:55,144 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:24:55,144 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:24:55,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55 BoogieIcfgContainer [2020-07-01 11:24:55,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:24:55,148 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:24:55,149 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:24:55,151 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:24:55,151 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (1/1) ... [2020-07-01 11:24:55,164 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:24:55,165 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:24:55,166 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:24:55,166 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:24:55,167 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:24:55,168 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:24:55,169 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:24:55,169 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:24:55,183 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:24:55,196 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:24:55,200 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:24:55,202 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:24:55,212 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:24:55,214 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:24:55,215 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:24:55,215 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:24:55,219 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:24:55,219 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:24:55,219 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:24:55,219 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:24:55,220 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:24:55,220 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:24:55,220 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 11:24:55,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55 BasicIcfg [2020-07-01 11:24:55,221 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:24:55,222 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:24:55,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:24:55,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:24:55,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:24:54" (1/4) ... [2020-07-01 11:24:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95554bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (2/4) ... [2020-07-01 11:24:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95554bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (3/4) ... [2020-07-01 11:24:55,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@95554bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55" (4/4) ... [2020-07-01 11:24:55,230 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:24:55,240 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:24:55,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:24:55,261 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:24:55,283 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:24:55,284 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:24:55,284 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:24:55,284 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:24:55,284 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:24:55,284 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:24:55,284 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:24:55,285 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:24:55,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 11:24:55,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:24:55,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 11:24:55,358 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:24:55,358 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 28) the Hoare annotation is: true [2020-07-01 11:24:55,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55 BasicIcfg [2020-07-01 11:24:55,365 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:24:55,366 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:24:55,366 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:24:55,369 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:24:55,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,371 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:24:54" (1/5) ... [2020-07-01 11:24:55,371 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:24:54" (2/5) ... [2020-07-01 11:24:55,372 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,372 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:24:55" (3/5) ... [2020-07-01 11:24:55,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:24:55" (4/5) ... [2020-07-01 11:24:55,373 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6790c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:55, skipping insertion in model container [2020-07-01 11:24:55,373 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:24:55,373 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:24:55" (5/5) ... [2020-07-01 11:24:55,375 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:24:55,403 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:24:55,404 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:24:55,404 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:24:55,404 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:24:55,404 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:24:55,404 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:24:55,404 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:24:55,405 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:24:55,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:24:55,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:24:55,426 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:24:55,426 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:24:55,431 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:24:55,432 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:24:55,432 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:24:55,432 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 11:24:55,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:24:55,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:24:55,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:24:55,433 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:24:55,433 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:24:55,438 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [23] ULTIMATE.startENTRY-->L22-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~old_x~0=v_ULTIMATE.start_main_~old_x~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~old_x~0, ULTIMATE.start_main_~x~0] 4#L22-2true [2020-07-01 11:24:55,438 INFO L796 eck$LassoCheckResult]: Loop: 4#L22-2true [38] L22-2-->L22-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_9 |v_ULTIMATE.start_main_#t~nondet1_5|) (= v_ULTIMATE.start_main_~old_x~0_5 v_ULTIMATE.start_main_~x~0_10) (< 1 v_ULTIMATE.start_main_~x~0_10) (= v_ULTIMATE.start_main_~old_x~0_5 (* v_ULTIMATE.start_main_~x~0_9 (- 2)))) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~old_x~0=v_ULTIMATE.start_main_~old_x~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~old_x~0, ULTIMATE.start_main_~x~0] 4#L22-2true [2020-07-01 11:24:55,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:55,444 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2020-07-01 11:24:55,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:55,454 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489186106] [2020-07-01 11:24:55,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:55,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:55,518 INFO L82 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2020-07-01 11:24:55,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:55,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781414584] [2020-07-01 11:24:55,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,541 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:55,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:55,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1712, now seen corresponding path program 1 times [2020-07-01 11:24:55,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:24:55,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751530237] [2020-07-01 11:24:55,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:24:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:24:55,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:24:55,603 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:24:55,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:24:55,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:24:55,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:24:55,605 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:24:55,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:24:55,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:24:55,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:24:55,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:24:55,606 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:24:55,606 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:24:55,624 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 11:24:55,704 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:24:55,705 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 11:24:55,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:24:55,713 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 11:24:55,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:24:55,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:24:55,967 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:24:55,970 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:24:55,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:24:55,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:24:55,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:24:55,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:24:55,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:24:55,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:24:55,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:24:55,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:24:55,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:24:55,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:24:55,995 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 11:24:56,072 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:24:56,078 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:24:56,082 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 11:24:56,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:24:56,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:24:56,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:24:56,086 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:24:56,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:24:56,091 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:24:56,091 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:24:56,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:24:56,104 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:24:56,105 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:24:56,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:24:56,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:24:56,112 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:24:56,113 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:24:56,146 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:24:56,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:24:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:24:56,177 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:24:56,178 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:24:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:24:56,190 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 11:24:56,191 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:24:56,191 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 11:24:56,204 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:24:56,209 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 1 loop predicates [2020-07-01 11:24:56,211 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states. Second operand 2 states. [2020-07-01 11:24:56,229 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states.. Second operand 2 states. Result 3 states and 3 transitions. Complement of second has 2 states. [2020-07-01 11:24:56,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 11:24:56,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:24:56,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2020-07-01 11:24:56,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-01 11:24:56,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:24:56,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:24:56,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:24:56,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 3 transitions. [2020-07-01 11:24:56,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:24:56,244 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-07-01 11:24:56,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:24:56,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:24:56,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:24:56,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:24:56,246 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:24:56,246 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:24:56,246 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:24:56,246 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:24:56,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:24:56,247 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:24:56,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:24:56,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:24:56 BasicIcfg [2020-07-01 11:24:56,253 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:24:56,255 INFO L168 Benchmark]: Toolchain (without parser) took 1680.32 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 438.8 MB in the beginning and 447.1 MB in the end (delta: -8.3 MB). Peak memory consumption was 41.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,256 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:24:56,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.96 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 438.2 MB in the beginning and 533.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 564.7 MB. Free memory was 533.2 MB in the beginning and 531.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,258 INFO L168 Benchmark]: Boogie Preprocessor took 19.35 ms. Allocated memory is still 564.7 MB. Free memory was 531.5 MB in the beginning and 529.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,258 INFO L168 Benchmark]: RCFGBuilder took 227.94 ms. Allocated memory is still 564.7 MB. Free memory was 529.9 MB in the beginning and 518.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,259 INFO L168 Benchmark]: BlockEncodingV2 took 72.58 ms. Allocated memory is still 564.7 MB. Free memory was 518.6 MB in the beginning and 513.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,260 INFO L168 Benchmark]: TraceAbstraction took 143.44 ms. Allocated memory is still 564.7 MB. Free memory was 512.7 MB in the beginning and 504.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,260 INFO L168 Benchmark]: BuchiAutomizer took 886.62 ms. Allocated memory is still 564.7 MB. Free memory was 504.4 MB in the beginning and 447.1 MB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:24:56,264 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.96 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 438.2 MB in the beginning and 533.2 MB in the end (delta: -94.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 564.7 MB. Free memory was 533.2 MB in the beginning and 531.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.35 ms. Allocated memory is still 564.7 MB. Free memory was 531.5 MB in the beginning and 529.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 227.94 ms. Allocated memory is still 564.7 MB. Free memory was 529.9 MB in the beginning and 518.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.58 ms. Allocated memory is still 564.7 MB. Free memory was 518.6 MB in the beginning and 513.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 50.3 GB. * TraceAbstraction took 143.44 ms. Allocated memory is still 564.7 MB. Free memory was 512.7 MB in the beginning and 504.4 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 886.62 ms. Allocated memory is still 564.7 MB. Free memory was 504.4 MB in the beginning and 447.1 MB in the end (delta: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function x and consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf112 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq188 hnf91 smp100 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 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 11:24:51.063 ----------------------------------------------- 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/sandbox/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/sandbox/tmp/BenchExec_run_xPjW1Y/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:24:56.698 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check