NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:43:10,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:43:10,384 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:43:10,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:43:10,396 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:43:10,397 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:43:10,398 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:43:10,399 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:43:10,401 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:43:10,402 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:43:10,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:43:10,403 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:43:10,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:43:10,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:43:10,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:43:10,406 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:43:10,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:43:10,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:43:10,411 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:43:10,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:43:10,413 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:43:10,414 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:43:10,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:43:10,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:43:10,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:43:10,418 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:43:10,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:43:10,419 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:43:10,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:43:10,420 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:43:10,420 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:43:10,421 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:43:10,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:43:10,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:43:10,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:43:10,423 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:43:10,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:43:10,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:43:10,425 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:43:10,425 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 01:43:10,439 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:43:10,439 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:43:10,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:43:10,441 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:43:10,441 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:43:10,441 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:43:10,441 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:43:10,441 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:43:10,441 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:43:10,442 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:43:10,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:43:10,443 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:43:10,443 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:43:10,443 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:43:10,443 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:43:10,443 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:43:10,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:43:10,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:43:10,444 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:43:10,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:43:10,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:43:10,444 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:43:10,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:43:10,445 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:43:10,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:43:10,483 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:43:10,486 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:43:10,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:43:10,488 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:43:10,489 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:43:10,550 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/555c2125b9fc49a38f4e8a1ba53192e9/FLAG95b78a232 [2020-06-22 01:43:10,935 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:43:10,936 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:43:10,945 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/555c2125b9fc49a38f4e8a1ba53192e9/FLAG95b78a232 [2020-06-22 01:43:11,290 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/555c2125b9fc49a38f4e8a1ba53192e9 [2020-06-22 01:43:11,301 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:43:11,303 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:43:11,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:43:11,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:43:11,308 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:43:11,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579da0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11, skipping insertion in model container [2020-06-22 01:43:11,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:43:11,351 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:43:11,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:43:11,624 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:43:11,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:43:11,682 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:43:11,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11 WrapperNode [2020-06-22 01:43:11,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:43:11,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:43:11,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:43:11,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:43:11,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:43:11,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:43:11,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:43:11,731 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:43:11,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (1/1) ... [2020-06-22 01:43:11,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:43:11,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:43:11,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:43:11,761 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:43:11,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (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 [2020-06-22 01:43:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_msg_t [2020-06-22 01:43:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:43:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:43:12,220 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:43:12,220 INFO L286 CfgBuilder]: Removed 20 assue(true) statements. [2020-06-22 01:43:12,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:43:12 BoogieIcfgContainer [2020-06-22 01:43:12,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:43:12,235 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:43:12,235 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:43:12,237 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:43:12,237 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:43:12" (1/1) ... [2020-06-22 01:43:12,258 INFO L313 BlockEncoder]: Initial Icfg 60 locations, 100 edges [2020-06-22 01:43:12,259 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:43:12,260 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:43:12,261 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:43:12,261 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:43:12,263 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:43:12,264 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:43:12,264 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:43:12,302 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:43:12,342 INFO L200 BlockEncoder]: SBE split 37 edges [2020-06-22 01:43:12,347 INFO L70 emoveInfeasibleEdges]: Removed 3 edges and 0 locations because of local infeasibility [2020-06-22 01:43:12,349 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:43:12,365 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 01:43:12,368 INFO L70 RemoveSinkStates]: Removed 2 edges and 2 locations by removing sink states [2020-06-22 01:43:12,369 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:43:12,370 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:43:12,370 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:43:12,371 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:43:12,371 INFO L313 BlockEncoder]: Encoded RCFG 55 locations, 136 edges [2020-06-22 01:43:12,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:43:12 BasicIcfg [2020-06-22 01:43:12,372 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:43:12,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:43:12,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:43:12,376 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:43:12,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:43:11" (1/4) ... [2020-06-22 01:43:12,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8b59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (2/4) ... [2020-06-22 01:43:12,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8b59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:43:12" (3/4) ... [2020-06-22 01:43:12,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b8b59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:43:12" (4/4) ... [2020-06-22 01:43:12,380 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:43:12,390 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:43:12,398 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:43:12,415 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:43:12,444 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:43:12,445 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:43:12,445 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:43:12,445 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:43:12,445 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:43:12,445 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:43:12,446 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:43:12,446 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:43:12,446 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:43:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-06-22 01:43:12,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:43:12,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 55 states. [2020-06-22 01:43:12,529 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2020-06-22 01:43:12,529 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L192(lines 192 196) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L159(lines 159 161) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 266) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L188(lines 188 208) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L155(lines 155 162) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L155-1(lines 155 162) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 269) no Hoare annotation was computed. [2020-06-22 01:43:12,530 INFO L448 ceAbstractionStarter]: For program point L250-1(lines 250 269) no Hoare annotation was computed. [2020-06-22 01:43:12,531 INFO L448 ceAbstractionStarter]: For program point L184(lines 184 220) no Hoare annotation was computed. [2020-06-22 01:43:12,531 INFO L448 ceAbstractionStarter]: For program point L180(lines 180 232) no Hoare annotation was computed. [2020-06-22 01:43:12,531 INFO L451 ceAbstractionStarter]: At program point L242(lines 172 244) the Hoare annotation is: true [2020-06-22 01:43:12,531 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-06-22 01:43:12,531 INFO L451 ceAbstractionStarter]: At program point L325-2(lines 325 329) the Hoare annotation is: true [2020-06-22 01:43:12,532 INFO L448 ceAbstractionStarter]: For program point L131(lines 131 136) no Hoare annotation was computed. [2020-06-22 01:43:12,532 INFO L448 ceAbstractionStarter]: For program point L259(lines 259 263) no Hoare annotation was computed. [2020-06-22 01:43:12,532 INFO L448 ceAbstractionStarter]: For program point L127(lines 127 142) no Hoare annotation was computed. [2020-06-22 01:43:12,532 INFO L451 ceAbstractionStarter]: At program point L255(lines 251 266) the Hoare annotation is: true [2020-06-22 01:43:12,532 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:43:12,532 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 205) no Hoare annotation was computed. [2020-06-22 01:43:12,532 INFO L451 ceAbstractionStarter]: At program point L127-2(lines 121 145) the Hoare annotation is: true [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L156(lines 156 161) no Hoare annotation was computed. [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L251(lines 251 266) no Hoare annotation was computed. [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L185(lines 185 217) no Hoare annotation was computed. [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 167) no Hoare annotation was computed. [2020-06-22 01:43:12,533 INFO L451 ceAbstractionStarter]: At program point L152-2(lines 146 170) the Hoare annotation is: true [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L181(lines 181 229) no Hoare annotation was computed. [2020-06-22 01:43:12,533 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L177(lines 177 241) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 177 241) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L140-2(line 140) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 112) no Hoare annotation was computed. [2020-06-22 01:43:12,534 INFO L448 ceAbstractionStarter]: For program point L103-1(lines 103 112) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L165(line 165) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L99(lines 99 117) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L165-2(line 165) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L451 ceAbstractionStarter]: At program point L99-2(lines 93 120) the Hoare annotation is: true [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L190(lines 190 202) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 214) no Hoare annotation was computed. [2020-06-22 01:43:12,535 INFO L448 ceAbstractionStarter]: For program point L182(lines 182 226) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 238) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L451 ceAbstractionStarter]: At program point L302-2(lines 302 317) the Hoare annotation is: true [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L104(lines 104 111) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 211) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L183(lines 183 223) no Hoare annotation was computed. [2020-06-22 01:43:12,536 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 235) no Hoare annotation was computed. [2020-06-22 01:43:12,537 INFO L451 ceAbstractionStarter]: At program point L270(lines 245 272) the Hoare annotation is: true [2020-06-22 01:43:12,537 INFO L448 ceAbstractionStarter]: For program point L332(lines 332 343) no Hoare annotation was computed. [2020-06-22 01:43:12,537 INFO L448 ceAbstractionStarter]: For program point L134(lines 134 136) no Hoare annotation was computed. [2020-06-22 01:43:12,537 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2020-06-22 01:43:12,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:43:12 BasicIcfg [2020-06-22 01:43:12,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:43:12,547 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:43:12,547 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:43:12,550 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:43:12,551 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:43:12,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:43:11" (1/5) ... [2020-06-22 01:43:12,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@113aaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,552 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:43:12,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:43:11" (2/5) ... [2020-06-22 01:43:12,553 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@113aaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,553 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:43:12,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:43:12" (3/5) ... [2020-06-22 01:43:12,553 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@113aaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,553 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:43:12,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:43:12" (4/5) ... [2020-06-22 01:43:12,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@113aaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:43:12, skipping insertion in model container [2020-06-22 01:43:12,554 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:43:12,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:43:12" (5/5) ... [2020-06-22 01:43:12,556 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:43:12,581 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:43:12,581 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:43:12,581 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:43:12,581 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:43:12,581 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:43:12,582 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:43:12,582 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:43:12,582 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:43:12,582 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:43:12,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states. [2020-06-22 01:43:12,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2020-06-22 01:43:12,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:43:12,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:43:12,616 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:43:12,616 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:43:12,616 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:43:12,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states. [2020-06-22 01:43:12,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2020-06-22 01:43:12,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:43:12,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:43:12,622 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:43:12,622 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:43:12,627 INFO L794 eck$LassoCheckResult]: Stem: 20#ULTIMATE.startENTRYtrue [497] ULTIMATE.startENTRY-->L177: Formula: (and (= v_~p2~0_2 0) (= (- 1) v_~nomsg~0_22) (= (store (store (store v_~nodes~0.offset_6 0 |#funAddr~node1.offset|) 1 |#funAddr~node2.offset|) 2 |#funAddr~node3.offset|) v_~nodes~0.offset_5) (= 0 v_~p2_old~0_6) (= v_~p3_old~0_6 0) (= 0 v_~p3_new~0_8) (= v_~p3~0_2 0) (= v_~p1~0_2 0) (= (store (store (store v_~nodes~0.base_6 0 |#funAddr~node1.base|) 1 |#funAddr~node2.base|) 2 |#funAddr~node3.base|) v_~nodes~0.base_5) (= v_~p2_new~0_8 0) (= 0 v_ULTIMATE.start_main_~c1~0_7) (= 0 v_~p1_new~0_8) (= v_~p1_old~0_6 0)) InVars {~nodes~0.offset=v_~nodes~0.offset_6, ~nodes~0.base=v_~nodes~0.base_6} OutVars{~id1~0=v_~id1~0_15, ULTIMATE.start_main_#t~nondet11=|v_ULTIMATE.start_main_#t~nondet11_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet13=|v_ULTIMATE.start_main_#t~nondet13_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_4|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_6|, ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_6|, ULTIMATE.start_main_~c1~0=v_ULTIMATE.start_main_~c1~0_7, ~p2~0=v_~p2~0_2, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_6|, ~id3~0=v_~id3~0_15, ~mode2~0=v_~mode2~0_9, ~st3~0=v_~st3~0_12, ~r1~0=v_~r1~0_11, ~st1~0=v_~st1~0_12, ~send2~0=v_~send2~0_8, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_10, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_21, ~nodes~0.base=v_~nodes~0.base_5, ~id2~0=v_~id2~0_15, ~nodes~0.offset=v_~nodes~0.offset_5, ~p1_old~0=v_~p1_old~0_6, ~nomsg~0=v_~nomsg~0_22, ULTIMATE.start_main_#t~post18=|v_ULTIMATE.start_main_#t~post18_4|, ~p3_old~0=v_~p3_old~0_6, ~p3~0=v_~p3~0_2, ~p2_old~0=v_~p2_old~0_6, ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_4|, ~mode1~0=v_~mode1~0_9, ULTIMATE.start_main_#t~ret17=|v_ULTIMATE.start_main_#t~ret17_4|, ~mode3~0=v_~mode3~0_9, ULTIMATE.start_main_#t~ret14=|v_ULTIMATE.start_main_#t~ret14_5|, ~p3_new~0=v_~p3_new~0_8, ~p2_new~0=v_~p2_new~0_8, ~p1_new~0=v_~p1_new~0_8, ~st2~0=v_~st2~0_12, ~p1~0=v_~p1~0_2, ULTIMATE.start_main_#t~ret10=|v_ULTIMATE.start_main_#t~ret10_5|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet15=|v_ULTIMATE.start_main_#t~nondet15_6|, ~send3~0=v_~send3~0_8, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_5|, ~send1~0=v_~send1~0_9} AuxVars[] AssignedVars[~id1~0, ULTIMATE.start_main_#t~nondet11, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet12, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet13, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_init_#res, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_#t~nondet9, ULTIMATE.start_main_~c1~0, ~p2~0, ULTIMATE.start_main_#t~nondet7, ~id3~0, ~mode2~0, ~st3~0, ~r1~0, ~st1~0, ~send2~0, ULTIMATE.start_main_~i2~0, ULTIMATE.start_init_~tmp~0, ~nodes~0.base, ~id2~0, ~nodes~0.offset, ~p1_old~0, ~nomsg~0, ULTIMATE.start_main_#t~post18, ~p3_old~0, ~p3~0, ~p2_old~0, ULTIMATE.start_main_#t~ret16, ~mode1~0, ULTIMATE.start_main_#t~ret17, ~mode3~0, ULTIMATE.start_main_#t~ret14, ~p3_new~0, ~p2_new~0, ~p1_new~0, ~st2~0, ~p1~0, ULTIMATE.start_main_#t~ret10, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet15, ~send3~0, ULTIMATE.start_main_#t~ret6, ~send1~0] 30#L177true [417] L177-->L177-1: Formula: (and (> v_~r1~0_4 0) (= v_ULTIMATE.start_init_~tmp~0_19 0)) InVars {~r1~0=v_~r1~0_4} OutVars{ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_19, ~r1~0=v_~r1~0_4} AuxVars[] AssignedVars[ULTIMATE.start_init_~tmp~0] 28#L177-1true [314] L177-1-->L242: Formula: (= |v_ULTIMATE.start_init_#res_2| v_ULTIMATE.start_init_~tmp~0_20) InVars {ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} OutVars{ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_2|, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} AuxVars[] AssignedVars[ULTIMATE.start_init_#res] 18#L242true [422] L242-->L325-2: Formula: (and (= |v_ULTIMATE.start_init_#res_3| v_ULTIMATE.start_main_~i2~0_6) (= v_ULTIMATE.start___VERIFIER_assume_~arg_1 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|) (> 0 v_ULTIMATE.start_main_~i2~0_6) (= 1 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|)) InVars {ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|} OutVars{ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_2|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|, ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_1, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_6, ULTIMATE.start___VERIFIER_assume_#in~arg=|v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret16, ULTIMATE.start___VERIFIER_assume_~arg, ULTIMATE.start_main_~i2~0, ULTIMATE.start___VERIFIER_assume_#in~arg] 4#L325-2true [2020-06-22 01:43:12,628 INFO L796 eck$LassoCheckResult]: Loop: 4#L325-2true [273] L325-2-->L325-2: Formula: (= v_ULTIMATE.start___VERIFIER_assume_~arg_4 0) InVars {ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} OutVars{ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} AuxVars[] AssignedVars[] 4#L325-2true [2020-06-22 01:43:12,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:43:12,633 INFO L82 PathProgramCache]: Analyzing trace with hash 16140541, now seen corresponding path program 1 times [2020-06-22 01:43:12,635 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:43:12,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:43:12,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:12,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:43:12,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:43:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:43:12,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:43:12,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:43:12,767 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 01:43:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:43:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash 304, now seen corresponding path program 1 times [2020-06-22 01:43:12,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:43:12,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:43:12,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:12,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:43:12,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:12,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:43:12,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:43:12,827 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 4 states. [2020-06-22 01:43:13,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:43:13,296 INFO L93 Difference]: Finished difference Result 129 states and 307 transitions. [2020-06-22 01:43:13,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 01:43:13,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 307 transitions. [2020-06-22 01:43:13,306 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 105 [2020-06-22 01:43:13,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 129 states and 307 transitions. [2020-06-22 01:43:13,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 129 [2020-06-22 01:43:13,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 129 [2020-06-22 01:43:13,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 129 states and 307 transitions. [2020-06-22 01:43:13,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:43:13,320 INFO L706 BuchiCegarLoop]: Abstraction has 129 states and 307 transitions. [2020-06-22 01:43:13,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states and 307 transitions. [2020-06-22 01:43:13,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 57. [2020-06-22 01:43:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-06-22 01:43:13,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 135 transitions. [2020-06-22 01:43:13,359 INFO L729 BuchiCegarLoop]: Abstraction has 57 states and 135 transitions. [2020-06-22 01:43:13,359 INFO L609 BuchiCegarLoop]: Abstraction has 57 states and 135 transitions. [2020-06-22 01:43:13,359 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:43:13,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 135 transitions. [2020-06-22 01:43:13,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2020-06-22 01:43:13,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:43:13,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:43:13,362 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:43:13,362 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:43:13,363 INFO L794 eck$LassoCheckResult]: Stem: 229#ULTIMATE.startENTRY [497] ULTIMATE.startENTRY-->L177: Formula: (and (= v_~p2~0_2 0) (= (- 1) v_~nomsg~0_22) (= (store (store (store v_~nodes~0.offset_6 0 |#funAddr~node1.offset|) 1 |#funAddr~node2.offset|) 2 |#funAddr~node3.offset|) v_~nodes~0.offset_5) (= 0 v_~p2_old~0_6) (= v_~p3_old~0_6 0) (= 0 v_~p3_new~0_8) (= v_~p3~0_2 0) (= v_~p1~0_2 0) (= (store (store (store v_~nodes~0.base_6 0 |#funAddr~node1.base|) 1 |#funAddr~node2.base|) 2 |#funAddr~node3.base|) v_~nodes~0.base_5) (= v_~p2_new~0_8 0) (= 0 v_ULTIMATE.start_main_~c1~0_7) (= 0 v_~p1_new~0_8) (= v_~p1_old~0_6 0)) InVars {~nodes~0.offset=v_~nodes~0.offset_6, ~nodes~0.base=v_~nodes~0.base_6} OutVars{~id1~0=v_~id1~0_15, ULTIMATE.start_main_#t~nondet11=|v_ULTIMATE.start_main_#t~nondet11_6|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_6|, ULTIMATE.start_main_#t~nondet12=|v_ULTIMATE.start_main_#t~nondet12_6|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_6|, ULTIMATE.start_main_#t~nondet13=|v_ULTIMATE.start_main_#t~nondet13_6|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_4|, ULTIMATE.start_main_#t~nondet8=|v_ULTIMATE.start_main_#t~nondet8_6|, ULTIMATE.start_main_#t~nondet9=|v_ULTIMATE.start_main_#t~nondet9_6|, ULTIMATE.start_main_~c1~0=v_ULTIMATE.start_main_~c1~0_7, ~p2~0=v_~p2~0_2, ULTIMATE.start_main_#t~nondet7=|v_ULTIMATE.start_main_#t~nondet7_6|, ~id3~0=v_~id3~0_15, ~mode2~0=v_~mode2~0_9, ~st3~0=v_~st3~0_12, ~r1~0=v_~r1~0_11, ~st1~0=v_~st1~0_12, ~send2~0=v_~send2~0_8, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_10, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_21, ~nodes~0.base=v_~nodes~0.base_5, ~id2~0=v_~id2~0_15, ~nodes~0.offset=v_~nodes~0.offset_5, ~p1_old~0=v_~p1_old~0_6, ~nomsg~0=v_~nomsg~0_22, ULTIMATE.start_main_#t~post18=|v_ULTIMATE.start_main_#t~post18_4|, ~p3_old~0=v_~p3_old~0_6, ~p3~0=v_~p3~0_2, ~p2_old~0=v_~p2_old~0_6, ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_4|, ~mode1~0=v_~mode1~0_9, ULTIMATE.start_main_#t~ret17=|v_ULTIMATE.start_main_#t~ret17_4|, ~mode3~0=v_~mode3~0_9, ULTIMATE.start_main_#t~ret14=|v_ULTIMATE.start_main_#t~ret14_5|, ~p3_new~0=v_~p3_new~0_8, ~p2_new~0=v_~p2_new~0_8, ~p1_new~0=v_~p1_new~0_8, ~st2~0=v_~st2~0_12, ~p1~0=v_~p1~0_2, ULTIMATE.start_main_#t~ret10=|v_ULTIMATE.start_main_#t~ret10_5|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_3|, ULTIMATE.start_main_#t~nondet15=|v_ULTIMATE.start_main_#t~nondet15_6|, ~send3~0=v_~send3~0_8, ULTIMATE.start_main_#t~ret6=|v_ULTIMATE.start_main_#t~ret6_5|, ~send1~0=v_~send1~0_9} AuxVars[] AssignedVars[~id1~0, ULTIMATE.start_main_#t~nondet11, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet12, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet13, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_init_#res, ULTIMATE.start_main_#t~nondet8, ULTIMATE.start_main_#t~nondet9, ULTIMATE.start_main_~c1~0, ~p2~0, ULTIMATE.start_main_#t~nondet7, ~id3~0, ~mode2~0, ~st3~0, ~r1~0, ~st1~0, ~send2~0, ULTIMATE.start_main_~i2~0, ULTIMATE.start_init_~tmp~0, ~nodes~0.base, ~id2~0, ~nodes~0.offset, ~p1_old~0, ~nomsg~0, ULTIMATE.start_main_#t~post18, ~p3_old~0, ~p3~0, ~p2_old~0, ULTIMATE.start_main_#t~ret16, ~mode1~0, ULTIMATE.start_main_#t~ret17, ~mode3~0, ULTIMATE.start_main_#t~ret14, ~p3_new~0, ~p2_new~0, ~p1_new~0, ~st2~0, ~p1~0, ULTIMATE.start_main_#t~ret10, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet15, ~send3~0, ULTIMATE.start_main_#t~ret6, ~send1~0] 230#L177 [417] L177-->L177-1: Formula: (and (> v_~r1~0_4 0) (= v_ULTIMATE.start_init_~tmp~0_19 0)) InVars {~r1~0=v_~r1~0_4} OutVars{ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_19, ~r1~0=v_~r1~0_4} AuxVars[] AssignedVars[ULTIMATE.start_init_~tmp~0] 197#L177-1 [314] L177-1-->L242: Formula: (= |v_ULTIMATE.start_init_#res_2| v_ULTIMATE.start_init_~tmp~0_20) InVars {ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} OutVars{ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_2|, ULTIMATE.start_init_~tmp~0=v_ULTIMATE.start_init_~tmp~0_20} AuxVars[] AssignedVars[ULTIMATE.start_init_#res] 227#L242 [420] L242-->L325-2: Formula: (and (= 0 v_ULTIMATE.start_main_~i2~0_6) (= |v_ULTIMATE.start_init_#res_3| v_ULTIMATE.start_main_~i2~0_6) (= v_ULTIMATE.start___VERIFIER_assume_~arg_1 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|) (= 0 |v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|)) InVars {ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|} OutVars{ULTIMATE.start_main_#t~ret16=|v_ULTIMATE.start_main_#t~ret16_2|, ULTIMATE.start_init_#res=|v_ULTIMATE.start_init_#res_3|, ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_1, ULTIMATE.start_main_~i2~0=v_ULTIMATE.start_main_~i2~0_6, ULTIMATE.start___VERIFIER_assume_#in~arg=|v_ULTIMATE.start___VERIFIER_assume_#in~arg_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret16, ULTIMATE.start___VERIFIER_assume_~arg, ULTIMATE.start_main_~i2~0, ULTIMATE.start___VERIFIER_assume_#in~arg] 199#L325-2 [2020-06-22 01:43:13,363 INFO L796 eck$LassoCheckResult]: Loop: 199#L325-2 [273] L325-2-->L325-2: Formula: (= v_ULTIMATE.start___VERIFIER_assume_~arg_4 0) InVars {ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} OutVars{ULTIMATE.start___VERIFIER_assume_~arg=v_ULTIMATE.start___VERIFIER_assume_~arg_4} AuxVars[] AssignedVars[] 199#L325-2 [2020-06-22 01:43:13,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:43:13,364 INFO L82 PathProgramCache]: Analyzing trace with hash 16140539, now seen corresponding path program 1 times [2020-06-22 01:43:13,364 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:43:13,364 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:43:13,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:43:13,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:43:13,392 INFO L82 PathProgramCache]: Analyzing trace with hash 304, now seen corresponding path program 2 times [2020-06-22 01:43:13,392 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:43:13,392 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:43:13,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:43:13,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:43:13,401 INFO L82 PathProgramCache]: Analyzing trace with hash 500356982, now seen corresponding path program 1 times [2020-06-22 01:43:13,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:43:13,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:43:13,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,403 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:43:13,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:43:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:43:13,559 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-06-22 01:43:13,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:43:13 BasicIcfg [2020-06-22 01:43:13,650 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:43:13,650 INFO L168 Benchmark]: Toolchain (without parser) took 2348.66 ms. Allocated memory was 514.9 MB in the beginning and 593.0 MB in the end (delta: 78.1 MB). Free memory was 439.7 MB in the beginning and 496.7 MB in the end (delta: -57.0 MB). Peak memory consumption was 21.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,651 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 459.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:43:13,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.90 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 439.2 MB in the beginning and 527.9 MB in the end (delta: -88.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 564.7 MB. Free memory was 527.9 MB in the beginning and 525.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,653 INFO L168 Benchmark]: Boogie Preprocessor took 29.51 ms. Allocated memory is still 564.7 MB. Free memory was 525.0 MB in the beginning and 522.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,654 INFO L168 Benchmark]: RCFGBuilder took 473.61 ms. Allocated memory is still 564.7 MB. Free memory was 522.9 MB in the beginning and 491.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,654 INFO L168 Benchmark]: BlockEncodingV2 took 137.39 ms. Allocated memory is still 564.7 MB. Free memory was 491.8 MB in the beginning and 477.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,655 INFO L168 Benchmark]: TraceAbstraction took 173.61 ms. Allocated memory is still 564.7 MB. Free memory was 477.2 MB in the beginning and 463.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:43:13,655 INFO L168 Benchmark]: BuchiAutomizer took 1102.90 ms. Allocated memory was 564.7 MB in the beginning and 593.0 MB in the end (delta: 28.3 MB). Free memory was 463.4 MB in the beginning and 496.7 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:43:13,660 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 60 locations, 100 edges - StatisticsResult: Encoded RCFG 55 locations, 136 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 514.9 MB. Free memory is still 459.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 379.90 ms. Allocated memory was 514.9 MB in the beginning and 564.7 MB in the end (delta: 49.8 MB). Free memory was 439.2 MB in the beginning and 527.9 MB in the end (delta: -88.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 46.51 ms. Allocated memory is still 564.7 MB. Free memory was 527.9 MB in the beginning and 525.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 29.51 ms. Allocated memory is still 564.7 MB. Free memory was 525.0 MB in the beginning and 522.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 473.61 ms. Allocated memory is still 564.7 MB. Free memory was 522.9 MB in the beginning and 491.8 MB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 137.39 ms. Allocated memory is still 564.7 MB. Free memory was 491.8 MB in the beginning and 477.7 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 173.61 ms. Allocated memory is still 564.7 MB. Free memory was 477.2 MB in the beginning and 463.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1102.90 ms. Allocated memory was 564.7 MB in the beginning and 593.0 MB in the end (delta: 28.3 MB). Free memory was 463.4 MB in the beginning and 496.7 MB in the end (delta: -33.4 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 325]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 0 error locations. SAFE Result, 0.1s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 57 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 72 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 57 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 45 SDtfs, 261 SDslu, 234 SDs, 0 SdLazy, 245 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 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: 325]: 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 {\result=0, p2_old=0, p1_new=0, r1=1, \result=0, send1=0, send2=0, send3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ace17d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ed26c68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2944e898=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@322fb44=0, \old(arg)=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d51d51b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@479daa2e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a68a804=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c254bac=0, mode2=0, mode1=0, p2_new=0, id3=0, id1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67f8150=0, p1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@871b92f=0, id2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bd879fc=0, p3=0, p2=0, mode3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c1d8bbe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59f93c8c=0, st3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79829353=0, tmp=0, st1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70a41c8a=0, st2=0, p3_old=0, i2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4a32bfb8=0, p3_new=0, c1=0, p1_old=0, arg=0, nomsg=-1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 325]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] msg_t nomsg = (msg_t )-1; [L71] char r1 ; [L72] port_t p1 ; [L73] char p1_old ; [L74] char p1_new ; [L75] char id1 ; [L76] char st1 ; [L77] msg_t send1 ; [L78] _Bool mode1 ; [L79] port_t p2 ; [L80] char p2_old ; [L81] char p2_new ; [L82] char id2 ; [L83] char st2 ; [L84] msg_t send2 ; [L85] _Bool mode2 ; [L86] port_t p3 ; [L87] char p3_old ; [L88] char p3_new ; [L89] char id3 ; [L90] char st3 ; [L91] msg_t send3 ; [L92] _Bool mode3 ; [L171] void (*nodes[3])(void) = { & node1, & node2, & node3}; [L275] int c1 ; [L276] int i2 ; [L279] c1 = 0 [L280] r1 = __VERIFIER_nondet_char() [L281] id1 = __VERIFIER_nondet_char() [L282] st1 = __VERIFIER_nondet_char() [L283] send1 = __VERIFIER_nondet_msg_t() [L284] mode1 = __VERIFIER_nondet__Bool() [L285] id2 = __VERIFIER_nondet_char() [L286] st2 = __VERIFIER_nondet_char() [L287] send2 = __VERIFIER_nondet_msg_t() [L288] mode2 = __VERIFIER_nondet__Bool() [L289] id3 = __VERIFIER_nondet_char() [L290] st3 = __VERIFIER_nondet_char() [L291] send3 = __VERIFIER_nondet_msg_t() [L292] mode3 = __VERIFIER_nondet__Bool() [L174] int tmp ; [L177] COND FALSE !((int )r1 == 0) [L240] tmp = 0 [L242] return (tmp); [L293] i2 = init() Loop: [L325] COND TRUE ! arg End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 01:43:08.095 ----------------------------------------------- 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 -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:43:13.904 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check