/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:14:06,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:14:06,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:14:06,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:14:06,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:14:06,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:14:06,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:14:06,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:14:06,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:14:06,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:14:06,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:14:06,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:14:06,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:14:06,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:14:06,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:14:06,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:14:06,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:14:06,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:14:06,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:14:06,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:14:06,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:14:06,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:14:06,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:14:06,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:14:06,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:14:06,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:14:06,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:14:06,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:14:06,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:14:06,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:14:06,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:14:06,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:14:06,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:14:06,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:14:06,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:14:06,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:14:06,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:14:06,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:14:06,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:14:06,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:14:06,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:14:06,696 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:14:06,710 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:14:06,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:14:06,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:14:06,712 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:14:06,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:14:06,712 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:14:06,712 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:14:06,713 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:14:06,713 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:14:06,713 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:14:06,713 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:14:06,713 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:14:06,714 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:14:06,714 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:14:06,714 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:14:06,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:14:06,714 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:14:06,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:14:06,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:14:06,715 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:14:06,715 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:14:06,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:14:06,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:14:06,716 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:14:06,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:14:06,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:14:06,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:14:06,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:14:06,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:14:06,886 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:14:06,900 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:14:06,904 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:14:06,905 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:14:06,906 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:14:06,907 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:14:07,007 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FC63HO/tmp/35994e3c42414a72b6df61f380bb3923/FLAG7e606df12 [2020-07-01 11:14:07,353 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:14:07,354 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:14:07,361 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_FC63HO/tmp/35994e3c42414a72b6df61f380bb3923/FLAG7e606df12 [2020-07-01 11:14:07,773 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_FC63HO/tmp/35994e3c42414a72b6df61f380bb3923 [2020-07-01 11:14:07,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:14:07,786 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:14:07,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:14:07,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:14:07,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:14:07,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:14:07" (1/1) ... [2020-07-01 11:14:07,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f34c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:07, skipping insertion in model container [2020-07-01 11:14:07,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:14:07" (1/1) ... [2020-07-01 11:14:07,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:14:07,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:14:08,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:14:08,045 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:14:08,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:14:08,077 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:14:08,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08 WrapperNode [2020-07-01 11:14:08,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:14:08,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:14:08,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:14:08,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:14:08,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:14:08,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:14:08,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:14:08,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:14:08,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:14:08,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:14:08,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:14:08,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:14:08,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:14:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:14:08,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:14:08,354 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:14:08,354 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:14:08,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:08 BoogieIcfgContainer [2020-07-01 11:14:08,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:14:08,358 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:14:08,359 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:14:08,361 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:14:08,361 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:08" (1/1) ... [2020-07-01 11:14:08,374 INFO L313 BlockEncoder]: Initial Icfg 11 locations, 17 edges [2020-07-01 11:14:08,376 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:14:08,377 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:14:08,377 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:14:08,378 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:14:08,380 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:14:08,380 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:14:08,381 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:14:08,396 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:14:08,413 INFO L200 BlockEncoder]: SBE split 5 edges [2020-07-01 11:14:08,417 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:14:08,419 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:14:08,433 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:14:08,435 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:14:08,436 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:14:08,436 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:14:08,436 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:14:08,437 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:14:08,437 INFO L313 BlockEncoder]: Encoded RCFG 7 locations, 17 edges [2020-07-01 11:14:08,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:14:08 BasicIcfg [2020-07-01 11:14:08,438 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:14:08,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:14:08,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:14:08,443 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:14:08,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:14:07" (1/4) ... [2020-07-01 11:14:08,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b5f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (2/4) ... [2020-07-01 11:14:08,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b5f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:08" (3/4) ... [2020-07-01 11:14:08,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33b5f153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:14:08" (4/4) ... [2020-07-01 11:14:08,447 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:14:08,458 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:14:08,466 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:14:08,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:14:08,507 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:14:08,507 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:14:08,507 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:14:08,507 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:14:08,507 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:14:08,508 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:14:08,508 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:14:08,508 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:14:08,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-01 11:14:08,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:14:08,531 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-07-01 11:14:08,582 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:14:08,582 INFO L268 CegarLoopResult]: For program point L29(lines 29 31) no Hoare annotation was computed. [2020-07-01 11:14:08,582 INFO L268 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-07-01 11:14:08,583 INFO L268 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2020-07-01 11:14:08,583 INFO L268 CegarLoopResult]: For program point L23(lines 23 31) no Hoare annotation was computed. [2020-07-01 11:14:08,583 INFO L268 CegarLoopResult]: For program point L22(lines 22 32) no Hoare annotation was computed. [2020-07-01 11:14:08,583 INFO L271 CegarLoopResult]: At program point L22-1(lines 19 33) the Hoare annotation is: true [2020-07-01 11:14:08,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:14:08 BasicIcfg [2020-07-01 11:14:08,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:14:08,593 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:14:08,593 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:14:08,596 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:14:08,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:14:08,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:14:07" (1/5) ... [2020-07-01 11:14:08,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1363df63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:14:08,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:14:08" (2/5) ... [2020-07-01 11:14:08,599 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1363df63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,599 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:14:08,599 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:14:08" (3/5) ... [2020-07-01 11:14:08,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1363df63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:14:08,600 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:14:08" (4/5) ... [2020-07-01 11:14:08,600 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1363df63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:14:08, skipping insertion in model container [2020-07-01 11:14:08,600 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:14:08,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:14:08" (5/5) ... [2020-07-01 11:14:08,602 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:14:08,630 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:14:08,630 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:14:08,630 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:14:08,630 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:14:08,630 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:14:08,631 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:14:08,631 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:14:08,631 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:14:08,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 11:14:08,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:14:08,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:14:08,652 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:14:08,658 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:14:08,658 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:14:08,659 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:14:08,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-07-01 11:14:08,660 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:14:08,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:14:08,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:14:08,660 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:14:08,660 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:14:08,665 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L22-1: Formula: (and (= v_ULTIMATE.start_main_~N~0_1 10) (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~y~0_1 0)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_1, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0, ULTIMATE.start_main_~r~0, ULTIMATE.start_main_~x~0] 3#L22-1true [2020-07-01 11:14:08,666 INFO L796 eck$LassoCheckResult]: Loop: 3#L22-1true [47] L22-1-->L22: Formula: (and (= v_ULTIMATE.start_main_~i~0_7 (+ v_ULTIMATE.start_main_~i~0_8 1)) (< v_ULTIMATE.start_main_~i~0_8 v_ULTIMATE.start_main_~N~0_7) (= v_ULTIMATE.start_main_~r~0_6 |v_ULTIMATE.start_main_#t~nondet0_3|)) InVars {ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_3|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_2|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~N~0=v_ULTIMATE.start_main_~N~0_7, ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~r~0] 6#L22true [68] L22-->L22-1: Formula: (> v_ULTIMATE.start_main_~r~0_5 3) InVars {ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5} OutVars{ULTIMATE.start_main_~r~0=v_ULTIMATE.start_main_~r~0_5} AuxVars[] AssignedVars[] 3#L22-1true [2020-07-01 11:14:08,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:14:08,672 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 11:14:08,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:14:08,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578338110] [2020-07-01 11:14:08,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:14:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,753 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:14:08,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:14:08,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 1 times [2020-07-01 11:14:08,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:14:08,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736192561] [2020-07-01 11:14:08,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:14:08,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:14:08,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:14:08,774 INFO L82 PathProgramCache]: Analyzing trace with hash 77444, now seen corresponding path program 1 times [2020-07-01 11:14:08,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:14:08,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812336334] [2020-07-01 11:14:08,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:14:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:14:08,791 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:14:08,840 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:14:08,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:14:08,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:14:08,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:14:08,842 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:14:08,842 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:14:08,842 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:14:08,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:14:08,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:14:08,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:14:08,843 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:14:08,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:08,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:08,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:08,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:08,988 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:14:08,989 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:14:08,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:14:08,997 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:14:09,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:14:09,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:14:09,236 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:14:09,239 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:14:09,252 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:14:09,253 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:14:09,253 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:14:09,253 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:14:09,253 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:14:09,253 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:14:09,253 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:14:09,253 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:14:09,254 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:14:09,254 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:14:09,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:09,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:09,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:09,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:14:09,348 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:14:09,353 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:14:09,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:14:09,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:14:09,361 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:14:09,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:14:09,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:14:09,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:14:09,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:14:09,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:14:09,369 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:14:09,377 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:14:09,377 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:14:09,383 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:14:09,383 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:14:09,385 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:14:09,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2020-07-01 11:14:09,421 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:14:09,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:14:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:14:09,462 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:14:09,463 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:14:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:14:09,475 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:14:09,475 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:14:09,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:14:09,557 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:14:09,562 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:14:09,564 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states. Second operand 3 states. [2020-07-01 11:14:09,647 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states.. Second operand 3 states. Result 14 states and 33 transitions. Complement of second has 4 states. [2020-07-01 11:14:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:14:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:14:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2020-07-01 11:14:09,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:14:09,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:14:09,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:14:09,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:14:09,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:14:09,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:14:09,663 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 33 transitions. [2020-07-01 11:14:09,664 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:14:09,667 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-07-01 11:14:09,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:14:09,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:14:09,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:14:09,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:14:09,670 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:14:09,670 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:14:09,670 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:14:09,670 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:14:09,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:14:09,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:14:09,670 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:14:09,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:14:09 BasicIcfg [2020-07-01 11:14:09,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:14:09,679 INFO L168 Benchmark]: Toolchain (without parser) took 1892.91 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 556.4 MB in the beginning and 520.2 MB in the end (delta: 36.2 MB). Peak memory consumption was 65.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,680 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 579.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:14:09,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.03 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 556.4 MB in the beginning and 643.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.91 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,682 INFO L168 Benchmark]: Boogie Preprocessor took 19.89 ms. Allocated memory is still 679.0 MB. Free memory was 642.0 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,682 INFO L168 Benchmark]: RCFGBuilder took 225.57 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 623.7 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,683 INFO L168 Benchmark]: BlockEncodingV2 took 79.49 ms. Allocated memory is still 679.0 MB. Free memory was 623.7 MB in the beginning and 618.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,684 INFO L168 Benchmark]: TraceAbstraction took 153.20 ms. Allocated memory is still 679.0 MB. Free memory was 617.0 MB in the beginning and 608.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,684 INFO L168 Benchmark]: BuchiAutomizer took 1083.76 ms. Allocated memory is still 679.0 MB. Free memory was 608.9 MB in the beginning and 520.2 MB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:14:09,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 11 locations, 17 edges - StatisticsResult: Encoded RCFG 7 locations, 17 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 579.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 291.03 ms. Allocated memory was 649.6 MB in the beginning and 679.0 MB in the end (delta: 29.4 MB). Free memory was 556.4 MB in the beginning and 643.4 MB in the end (delta: -87.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.91 ms. Allocated memory is still 679.0 MB. Free memory was 643.4 MB in the beginning and 642.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.89 ms. Allocated memory is still 679.0 MB. Free memory was 642.0 MB in the beginning and 640.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 225.57 ms. Allocated memory is still 679.0 MB. Free memory was 640.7 MB in the beginning and 623.7 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 79.49 ms. Allocated memory is still 679.0 MB. Free memory was 623.7 MB in the beginning and 618.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.20 ms. Allocated memory is still 679.0 MB. Free memory was 617.0 MB in the beginning and 608.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1083.76 ms. Allocated memory is still 679.0 MB. Free memory was 608.9 MB in the beginning and 520.2 MB in the end (delta: 88.7 MB). Peak memory consumption was 88.7 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function -1 * i + N and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 32 SDslu, 45 SDs, 0 SdLazy, 51 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax175 hnf100 lsp35 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:14:04.430 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_FC63HO/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:14:10.124 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check