/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 10:36:36,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:36:36,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:36:36,445 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:36:36,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:36:36,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:36:36,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:36:36,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:36:36,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:36:36,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:36:36,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:36:36,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:36:36,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:36:36,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:36:36,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:36:36,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:36:36,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:36:36,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:36:36,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:36:36,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:36:36,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:36:36,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:36:36,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:36:36,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:36:36,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:36:36,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:36:36,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:36:36,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:36:36,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:36:36,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:36:36,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:36:36,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:36:36,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:36:36,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:36:36,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:36:36,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:36:36,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:36:36,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:36:36,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:36:36,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:36:36,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:36:36,476 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 10:36:36,490 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:36:36,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:36:36,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:36:36,491 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:36:36,492 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:36:36,492 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:36:36,492 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:36:36,492 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:36:36,492 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:36:36,492 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:36:36,493 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:36:36,493 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:36:36,493 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:36:36,493 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:36:36,493 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:36,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:36:36,494 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:36:36,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:36:36,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:36:36,494 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:36:36,494 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:36:36,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:36:36,495 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:36:36,495 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:36:36,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:36:36,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:36:36,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:36:36,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:36:36,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:36:36,658 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:36:36,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:36:36,675 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:36:36,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:36:36,677 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:36:36,678 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:36:36,736 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eSgXhg/tmp/93961db2a2304ef48be5f931ee6a98f6/FLAGfcb59220a [2020-07-01 10:36:37,065 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:36:37,065 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 10:36:37,072 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eSgXhg/tmp/93961db2a2304ef48be5f931ee6a98f6/FLAGfcb59220a [2020-07-01 10:36:37,475 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_eSgXhg/tmp/93961db2a2304ef48be5f931ee6a98f6 [2020-07-01 10:36:37,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:36:37,487 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:36:37,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:36:37,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:36:37,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:36:37,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a232a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37, skipping insertion in model container [2020-07-01 10:36:37,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:36:37,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:36:37,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:36:37,745 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:36:37,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:36:37,773 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:36:37,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37 WrapperNode [2020-07-01 10:36:37,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:36:37,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:36:37,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:36:37,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:36:37,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:36:37,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:36:37,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:36:37,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:36:37,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... [2020-07-01 10:36:37,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:36:37,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:36:37,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:36:37,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:36:37,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:36:37,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:36:37,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:36:38,035 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:36:38,035 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:36:38,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:36:38 BoogieIcfgContainer [2020-07-01 10:36:38,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:36:38,039 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:36:38,039 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:36:38,041 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:36:38,042 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:36:38" (1/1) ... [2020-07-01 10:36:38,054 INFO L313 BlockEncoder]: Initial Icfg 5 locations, 6 edges [2020-07-01 10:36:38,056 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:36:38,056 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:36:38,057 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:36:38,057 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:36:38,059 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:36:38,060 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:36:38,060 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:36:38,072 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:36:38,079 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 10:36:38,084 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:36:38,086 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:36:38,096 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:36:38,097 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 10:36:38,099 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:36:38,099 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:36:38,099 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:36:38,099 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:36:38,100 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 10:36:38,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:36:38 BasicIcfg [2020-07-01 10:36:38,100 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:36:38,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:36:38,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:36:38,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:36:38,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:36:37" (1/4) ... [2020-07-01 10:36:38,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d00eb87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (2/4) ... [2020-07-01 10:36:38,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d00eb87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:36:38" (3/4) ... [2020-07-01 10:36:38,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d00eb87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:36:38" (4/4) ... [2020-07-01 10:36:38,109 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:36:38,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:36:38,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:36:38,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:36:38,162 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:36:38,162 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:36:38,162 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:36:38,162 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:36:38,162 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:36:38,163 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:36:38,163 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:36:38,163 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:36:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 10:36:38,182 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:36:38,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 10:36:38,237 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:36:38,237 INFO L271 CegarLoopResult]: At program point L13-2(lines 13 15) the Hoare annotation is: true [2020-07-01 10:36:38,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:36:38 BasicIcfg [2020-07-01 10:36:38,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:36:38,245 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:36:38,246 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:36:38,249 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:36:38,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:36:38,250 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:36:37" (1/5) ... [2020-07-01 10:36:38,250 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e3b4604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,250 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:36:38,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:36:37" (2/5) ... [2020-07-01 10:36:38,251 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e3b4604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,251 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:36:38,251 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:36:38" (3/5) ... [2020-07-01 10:36:38,252 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e3b4604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,252 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:36:38,252 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:36:38" (4/5) ... [2020-07-01 10:36:38,253 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e3b4604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:36:38, skipping insertion in model container [2020-07-01 10:36:38,253 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:36:38,253 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:36:38" (5/5) ... [2020-07-01 10:36:38,254 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:36:38,282 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:36:38,283 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:36:38,283 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:36:38,283 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:36:38,283 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:36:38,283 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:36:38,283 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:36:38,284 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:36:38,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:36:38,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:36:38,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:36:38,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:36:38,309 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:36:38,309 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:36:38,310 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:36:38,310 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 10:36:38,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 10:36:38,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:36:38,311 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:36:38,311 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:36:38,311 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 10:36:38,316 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [17] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_~x~0] 4#L13-2true [2020-07-01 10:36:38,316 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [20] L13-2-->L13-2: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_6) (= v_ULTIMATE.start_main_~x~0_5 (+ v_ULTIMATE.start_main_~x~0_6 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5, ULTIMATE.start_main_#t~post1=|v_ULTIMATE.start_main_#t~post1_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~post1, ULTIMATE.start_main_~x~0] 4#L13-2true [2020-07-01 10:36:38,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:36:38,323 INFO L82 PathProgramCache]: Analyzing trace with hash 48, now seen corresponding path program 1 times [2020-07-01 10:36:38,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:36:38,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072852662] [2020-07-01 10:36:38,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:36:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,394 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:36:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:36:38,395 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-07-01 10:36:38,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:36:38,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121187868] [2020-07-01 10:36:38,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:36:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,413 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:36:38,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:36:38,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1508, now seen corresponding path program 1 times [2020-07-01 10:36:38,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:36:38,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759581119] [2020-07-01 10:36:38,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:36:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:36:38,424 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:36:38,466 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:36:38,467 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:36:38,467 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:36:38,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:36:38,468 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:36:38,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:36:38,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:36:38,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:36:38,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:36:38,469 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:36:38,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,543 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:36:38,544 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,560 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,594 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:36:38,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,646 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,646 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2020-07-01 10:36:38,686 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:36:38,687 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:36:38,687 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:36:38,687 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:36:38,687 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:36:38,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:36:38,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:36:38,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 10:36:38,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:36:38,688 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:36:38,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:36:38,759 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:36:38,759 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,767 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,767 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,800 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:36:38,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,848 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,848 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:36:38,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:36:38,916 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:36:38,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:36:38,920 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 10:36:38,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:36:38 BasicIcfg [2020-07-01 10:36:38,968 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:36:38,971 INFO L168 Benchmark]: Toolchain (without parser) took 1482.96 ms. Allocated memory was 514.9 MB in the beginning and 563.1 MB in the end (delta: 48.2 MB). Free memory was 438.5 MB in the beginning and 451.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 35.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,972 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:36:38,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.80 ms. Allocated memory was 514.9 MB in the beginning and 563.1 MB in the end (delta: 48.2 MB). Free memory was 438.5 MB in the beginning and 530.6 MB in the end (delta: -92.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 563.1 MB. Free memory was 530.6 MB in the beginning and 529.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,974 INFO L168 Benchmark]: Boogie Preprocessor took 19.08 ms. Allocated memory is still 563.1 MB. Free memory was 529.1 MB in the beginning and 527.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,974 INFO L168 Benchmark]: RCFGBuilder took 209.57 ms. Allocated memory is still 563.1 MB. Free memory was 527.8 MB in the beginning and 517.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,975 INFO L168 Benchmark]: BlockEncodingV2 took 61.26 ms. Allocated memory is still 563.1 MB. Free memory was 517.2 MB in the beginning and 512.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,975 INFO L168 Benchmark]: TraceAbstraction took 143.31 ms. Allocated memory is still 563.1 MB. Free memory was 511.7 MB in the beginning and 503.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,976 INFO L168 Benchmark]: BuchiAutomizer took 723.12 ms. Allocated memory is still 563.1 MB. Free memory was 503.4 MB in the beginning and 451.3 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 50.3 GB. [2020-07-01 10:36:38,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 5 locations, 6 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 285.80 ms. Allocated memory was 514.9 MB in the beginning and 563.1 MB in the end (delta: 48.2 MB). Free memory was 438.5 MB in the beginning and 530.6 MB in the end (delta: -92.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 563.1 MB. Free memory was 530.6 MB in the beginning and 529.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.08 ms. Allocated memory is still 563.1 MB. Free memory was 529.1 MB in the beginning and 527.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 209.57 ms. Allocated memory is still 563.1 MB. Free memory was 527.8 MB in the beginning and 517.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 61.26 ms. Allocated memory is still 563.1 MB. Free memory was 517.2 MB in the beginning and 512.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 143.31 ms. Allocated memory is still 563.1 MB. Free memory was 511.7 MB in the beginning and 503.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 723.12 ms. Allocated memory is still 563.1 MB. Free memory was 503.4 MB in the beginning and 451.3 MB in the end (delta: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cce3d0=0, \result=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@11da1a41=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cce3d0=0, \result=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@11da1a41=0} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57cce3d0=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@11da1a41=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x = __VERIFIER_nondet_int(); Loop: [L13] COND TRUE x >= 0 [L14] x++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 10:36:34.273 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_eSgXhg/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:36:39.219 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check