/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:17:07,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:17:07,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:17:07,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:17:07,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:17:07,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:17:07,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:17:07,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:17:07,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:17:07,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:17:07,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:17:07,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:17:07,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:17:07,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:17:07,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:17:07,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:17:07,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:17:07,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:17:07,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:17:07,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:17:07,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:17:07,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:17:07,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:17:07,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:17:07,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:17:07,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:17:07,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:17:07,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:17:07,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:17:07,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:17:07,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:17:07,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:17:07,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:17:07,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:17:07,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:17:07,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:17:07,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:17:07,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:17:07,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:17:07,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:17:07,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:17:07,333 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:17:07,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:17:07,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:17:07,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:17:07,349 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:17:07,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:17:07,349 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:07,349 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:17:07,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:17:07,350 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:17:07,351 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:17:07,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:17:07,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:17:07,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:17:07,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:17:07,352 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:17:07,352 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:17:07,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:17:07,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:17:07,352 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:17:07,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:07,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:17:07,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:17:07,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:17:07,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:17:07,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:17:07,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:17:07,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:17:07,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:17:07,535 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:17:07,536 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:17:07,599 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_q4FZHt/tmp/68f0d4cf23af491b8d8b5a9c8633410e/FLAG0bf4edae6 [2020-07-01 11:17:07,929 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:17:07,930 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:17:07,937 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_q4FZHt/tmp/68f0d4cf23af491b8d8b5a9c8633410e/FLAG0bf4edae6 [2020-07-01 11:17:08,355 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_q4FZHt/tmp/68f0d4cf23af491b8d8b5a9c8633410e [2020-07-01 11:17:08,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:17:08,368 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:17:08,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:08,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:17:08,372 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:17:08,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f5b52b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08, skipping insertion in model container [2020-07-01 11:17:08,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:17:08,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:17:08,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:08,639 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:17:08,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:17:08,673 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:17:08,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08 WrapperNode [2020-07-01 11:17:08,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:17:08,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:08,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:17:08,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:17:08,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:17:08,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:17:08,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:17:08,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:17:08,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... [2020-07-01 11:17:08,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:17:08,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:17:08,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:17:08,745 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:17:08,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:17:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:17:08,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:17:09,094 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:17:09,095 INFO L295 CfgBuilder]: Removed 13 assume(true) statements. [2020-07-01 11:17:09,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:09 BoogieIcfgContainer [2020-07-01 11:17:09,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:17:09,099 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:17:09,100 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:17:09,102 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:17:09,102 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:09" (1/1) ... [2020-07-01 11:17:09,119 INFO L313 BlockEncoder]: Initial Icfg 48 locations, 83 edges [2020-07-01 11:17:09,120 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:17:09,121 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:17:09,122 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:17:09,122 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:17:09,124 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:17:09,124 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:17:09,125 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:17:09,161 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:17:09,200 INFO L200 BlockEncoder]: SBE split 34 edges [2020-07-01 11:17:09,205 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:17:09,207 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:09,222 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2020-07-01 11:17:09,224 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:17:09,226 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:17:09,226 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:17:09,227 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:17:09,227 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:17:09,228 INFO L313 BlockEncoder]: Encoded RCFG 40 locations, 108 edges [2020-07-01 11:17:09,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:09 BasicIcfg [2020-07-01 11:17:09,228 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:17:09,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:17:09,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:17:09,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:17:09,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:17:08" (1/4) ... [2020-07-01 11:17:09,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555ac57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (2/4) ... [2020-07-01 11:17:09,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555ac57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:09" (3/4) ... [2020-07-01 11:17:09,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555ac57a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:09" (4/4) ... [2020-07-01 11:17:09,237 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:09,247 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:17:09,254 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:17:09,268 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:17:09,292 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:17:09,292 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:17:09,292 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:09,292 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:09,292 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:09,292 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:17:09,293 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:09,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:17:09,308 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-07-01 11:17:09,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:17:09,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 40 states. [2020-07-01 11:17:09,377 INFO L271 CegarLoopResult]: At program point L41-8(lines 19 47) the Hoare annotation is: true [2020-07-01 11:17:09,378 INFO L268 CegarLoopResult]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2020-07-01 11:17:09,378 INFO L268 CegarLoopResult]: For program point L41-9(lines 41 45) no Hoare annotation was computed. [2020-07-01 11:17:09,378 INFO L268 CegarLoopResult]: For program point L64-1(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,378 INFO L271 CegarLoopResult]: At program point L41-11(lines 19 47) the Hoare annotation is: true [2020-07-01 11:17:09,378 INFO L268 CegarLoopResult]: For program point L35-6(lines 35 39) no Hoare annotation was computed. [2020-07-01 11:17:09,378 INFO L268 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L35-9(lines 35 39) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L27-3(lines 27 31) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L56-2(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L27-6(lines 27 31) no Hoare annotation was computed. [2020-07-01 11:17:09,379 INFO L268 CegarLoopResult]: For program point L19(lines 19 47) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L19-1(lines 19 47) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L27-9(lines 27 31) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L19-2(lines 19 47) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 47) no Hoare annotation was computed. [2020-07-01 11:17:09,380 INFO L268 CegarLoopResult]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L34(lines 34 46) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L67-1(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L34-1(lines 34 46) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L34-2(lines 34 46) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point L34-3(lines 34 46) no Hoare annotation was computed. [2020-07-01 11:17:09,381 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L61-1(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L20(lines 20 32) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L20-1(lines 20 32) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L20-2(lines 20 32) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L20-3(lines 20 32) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L80-1(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,382 INFO L268 CegarLoopResult]: For program point L41(lines 41 45) no Hoare annotation was computed. [2020-07-01 11:17:09,383 INFO L271 CegarLoopResult]: At program point L41-2(lines 19 47) the Hoare annotation is: true [2020-07-01 11:17:09,383 INFO L268 CegarLoopResult]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2020-07-01 11:17:09,383 INFO L268 CegarLoopResult]: For program point L70-1(lines 52 84) no Hoare annotation was computed. [2020-07-01 11:17:09,383 INFO L271 CegarLoopResult]: At program point L41-5(lines 19 47) the Hoare annotation is: true [2020-07-01 11:17:09,383 INFO L268 CegarLoopResult]: For program point L35(lines 35 39) no Hoare annotation was computed. [2020-07-01 11:17:09,383 INFO L268 CegarLoopResult]: For program point L41-6(lines 41 45) no Hoare annotation was computed. [2020-07-01 11:17:09,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:09 BasicIcfg [2020-07-01 11:17:09,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:17:09,393 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:17:09,394 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:17:09,397 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:17:09,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:09,398 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:17:08" (1/5) ... [2020-07-01 11:17:09,399 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@279ca8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:09,399 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:17:08" (2/5) ... [2020-07-01 11:17:09,399 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@279ca8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:09,400 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:17:09" (3/5) ... [2020-07-01 11:17:09,400 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@279ca8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,400 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:09,400 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:17:09" (4/5) ... [2020-07-01 11:17:09,401 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@279ca8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:09, skipping insertion in model container [2020-07-01 11:17:09,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:17:09,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:17:09" (5/5) ... [2020-07-01 11:17:09,402 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:17:09,429 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:17:09,429 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:17:09,429 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:17:09,430 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:17:09,430 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:17:09,430 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:17:09,430 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:17:09,430 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:17:09,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2020-07-01 11:17:09,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:17:09,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:09,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:09,463 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:17:09,463 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:17:09,463 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:17:09,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states. [2020-07-01 11:17:09,467 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:17:09,468 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:17:09,468 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:17:09,468 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 11:17:09,468 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:17:09,474 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRYtrue [289] ULTIMATE.startENTRY-->L56: Formula: (and (= v_ULTIMATE.start_main_~d~0_1 1) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet8_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet10=|v_ULTIMATE.start_main_#t~nondet10_1|, ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_1|, ULTIMATE.start_main_#t~nondet14=|v_ULTIMATE.start_main_#t~nondet14_1|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_1|, ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#t~ret17=|v_ULTIMATE.start_main_#t~ret17_1|, ULTIMATE.start_main_#t~ret15=|v_ULTIMATE.start_main_#t~ret15_1|, ULTIMATE.start_main_#t~ret13=|v_ULTIMATE.start_main_#t~ret13_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~ret11=|v_ULTIMATE.start_main_#t~ret11_1|, ULTIMATE.start_main_#t~nondet16=|v_ULTIMATE.start_main_#t~nondet16_1|, ULTIMATE.start_main_#t~nondet18=|v_ULTIMATE.start_main_#t~nondet18_1|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet8_4|] AssignedVars[ULTIMATE.start_main_#t~nondet10, ULTIMATE.start_main_#t~nondet12, ULTIMATE.start_main_#t~nondet14, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_#t~nondet9, ULTIMATE.start_main_~x~0, ULTIMATE.start_main_#t~ret17, ULTIMATE.start_main_#t~ret15, ULTIMATE.start_main_#t~ret13, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~ret11, ULTIMATE.start_main_#t~nondet16, ULTIMATE.start_main_#t~nondet18, ULTIMATE.start_main_~d~0] 20#L56true [340] L56-->L56-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet9_3|) (= v_ULTIMATE.start_main_~d~0_4 (+ v_ULTIMATE.start_main_~d~0_5 (- 1)))) InVars {ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_3|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_5} OutVars{ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_2|, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet9, ULTIMATE.start_main_~d~0] 16#L56-2true [248] L56-2-->L61-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet10_5| 0) InVars {ULTIMATE.start_main_#t~nondet10=|v_ULTIMATE.start_main_#t~nondet10_5|} OutVars{ULTIMATE.start_main_#t~nondet10=|v_ULTIMATE.start_main_#t~nondet10_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet10] 27#L61-1true [274] L61-1-->L64-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet12_5| 0) InVars {ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_5|} OutVars{ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet12] 34#L64-1true [288] L64-1-->L67-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet14_3| 0) InVars {ULTIMATE.start_main_#t~nondet14=|v_ULTIMATE.start_main_#t~nondet14_3|} OutVars{ULTIMATE.start_main_#t~nondet14=|v_ULTIMATE.start_main_#t~nondet14_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet14] 19#L67-1true [254] L67-1-->L70-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet16_5| 0) InVars {ULTIMATE.start_main_#t~nondet16=|v_ULTIMATE.start_main_#t~nondet16_5|} OutVars{ULTIMATE.start_main_#t~nondet16=|v_ULTIMATE.start_main_#t~nondet16_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet16] 23#L70-1true [265] L70-1-->L80-1: Formula: (= |v_ULTIMATE.start_main_#t~nondet18_5| 0) InVars {ULTIMATE.start_main_#t~nondet18=|v_ULTIMATE.start_main_#t~nondet18_5|} OutVars{ULTIMATE.start_main_#t~nondet18=|v_ULTIMATE.start_main_#t~nondet18_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet18] 3#L80-1true [2020-07-01 11:17:09,474 INFO L796 eck$LassoCheckResult]: Loop: 3#L80-1true [223] L80-1-->L80-1: Formula: (and (< 0 v_ULTIMATE.start_main_~x~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ (* v_ULTIMATE.start_main_~d~0_8 (- 1)) v_ULTIMATE.start_main_~x~0_6))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_~d~0=v_ULTIMATE.start_main_~d~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 3#L80-1true [2020-07-01 11:17:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:09,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1914793981, now seen corresponding path program 1 times [2020-07-01 11:17:09,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:09,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107954599] [2020-07-01 11:17:09,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,573 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:09,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:09,574 INFO L82 PathProgramCache]: Analyzing trace with hash 254, now seen corresponding path program 1 times [2020-07-01 11:17:09,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:09,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014378748] [2020-07-01 11:17:09,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,583 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:09,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:17:09,585 INFO L82 PathProgramCache]: Analyzing trace with hash -770928510, now seen corresponding path program 1 times [2020-07-01 11:17:09,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:17:09,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112575560] [2020-07-01 11:17:09,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:17:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:17:09,602 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:17:09,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:17:09 BasicIcfg [2020-07-01 11:17:09,722 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:17:09,725 INFO L168 Benchmark]: Toolchain (without parser) took 1356.32 ms. Allocated memory was 514.9 MB in the beginning and 546.3 MB in the end (delta: 31.5 MB). Free memory was 438.4 MB in the beginning and 437.8 MB in the end (delta: 617.2 kB). Peak memory consumption was 32.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,726 INFO L168 Benchmark]: CDTParser took 0.16 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 11:17:09,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.64 ms. Allocated memory was 514.9 MB in the beginning and 546.3 MB in the end (delta: 31.5 MB). Free memory was 438.4 MB in the beginning and 513.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.62 ms. Allocated memory is still 546.3 MB. Free memory was 513.3 MB in the beginning and 511.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,728 INFO L168 Benchmark]: Boogie Preprocessor took 27.63 ms. Allocated memory is still 546.3 MB. Free memory was 511.1 MB in the beginning and 509.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,728 INFO L168 Benchmark]: RCFGBuilder took 354.43 ms. Allocated memory is still 546.3 MB. Free memory was 509.0 MB in the beginning and 485.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,729 INFO L168 Benchmark]: BlockEncodingV2 took 129.04 ms. Allocated memory is still 546.3 MB. Free memory was 485.7 MB in the beginning and 474.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,730 INFO L168 Benchmark]: TraceAbstraction took 163.25 ms. Allocated memory is still 546.3 MB. Free memory was 474.4 MB in the beginning and 462.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,730 INFO L168 Benchmark]: BuchiAutomizer took 328.89 ms. Allocated memory is still 546.3 MB. Free memory was 461.8 MB in the beginning and 437.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:17:09,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 48 locations, 83 edges - StatisticsResult: Encoded RCFG 40 locations, 108 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 305.64 ms. Allocated memory was 514.9 MB in the beginning and 546.3 MB in the end (delta: 31.5 MB). Free memory was 438.4 MB in the beginning and 513.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 41.62 ms. Allocated memory is still 546.3 MB. Free memory was 513.3 MB in the beginning and 511.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 27.63 ms. Allocated memory is still 546.3 MB. Free memory was 511.1 MB in the beginning and 509.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 354.43 ms. Allocated memory is still 546.3 MB. Free memory was 509.0 MB in the beginning and 485.7 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 129.04 ms. Allocated memory is still 546.3 MB. Free memory was 485.7 MB in the beginning and 474.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 163.25 ms. Allocated memory is still 546.3 MB. Free memory was 474.4 MB in the beginning and 462.4 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 328.89 ms. Allocated memory is still 546.3 MB. Free memory was 461.8 MB in the beginning and 437.8 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 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=40occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 80]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59651ab=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d0fc524=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bf32d9e=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@311ebd35=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e6959c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cd55a46=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19c4da9c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@616c4dc1=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e437b4a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@420209bb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77fd2e12=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 52]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int d = 1; [L54] int x = __VERIFIER_nondet_int(); [L56] COND TRUE __VERIFIER_nondet_int() [L57] d = d - 1 [L61] COND FALSE !(__VERIFIER_nondet_int()) [L64] COND FALSE !(__VERIFIER_nondet_int()) [L67] COND FALSE !(__VERIFIER_nondet_int()) [L70] COND FALSE !(__VERIFIER_nondet_int()) [L76] COND FALSE !(__VERIFIER_nondet_int()) Loop: [L80] COND TRUE x > 0 [L81] x = x - d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:17:05.099 ----------------------------------------------- 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_q4FZHt/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:17:09.972 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check