NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 23:26:40,571 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 23:26:40,573 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 23:26:40,586 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 23:26:40,586 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 23:26:40,587 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 23:26:40,588 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 23:26:40,590 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 23:26:40,591 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 23:26:40,592 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 23:26:40,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 23:26:40,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 23:26:40,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 23:26:40,595 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 23:26:40,596 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 23:26:40,597 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 23:26:40,597 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 23:26:40,599 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 23:26:40,601 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 23:26:40,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 23:26:40,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 23:26:40,605 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 23:26:40,607 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 23:26:40,607 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 23:26:40,607 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 23:26:40,608 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 23:26:40,608 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 23:26:40,609 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 23:26:40,609 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 23:26:40,610 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 23:26:40,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 23:26:40,611 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 23:26:40,612 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 23:26:40,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 23:26:40,613 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 23:26:40,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 23:26:40,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 23:26:40,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 23:26:40,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 23:26:40,615 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 23:26:40,631 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 23:26:40,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 23:26:40,632 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 23:26:40,632 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 23:26:40,632 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 23:26:40,632 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 23:26:40,633 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 23:26:40,633 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 23:26:40,634 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 23:26:40,634 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 23:26:40,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 23:26:40,634 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 23:26:40,634 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 23:26:40,634 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 23:26:40,635 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 23:26:40,635 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 23:26:40,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 23:26:40,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 23:26:40,635 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 23:26:40,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 23:26:40,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 23:26:40,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 23:26:40,636 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 23:26:40,636 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 23:26:40,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 23:26:40,675 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 23:26:40,678 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 23:26:40,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 23:26:40,680 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 23:26:40,681 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:26:40,746 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/5392c996885249e3bca1aa466ea078cf/FLAG3a33b27de [2020-06-21 23:26:41,086 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 23:26:41,086 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 23:26:41,093 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/5392c996885249e3bca1aa466ea078cf/FLAG3a33b27de [2020-06-21 23:26:41,485 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/5392c996885249e3bca1aa466ea078cf [2020-06-21 23:26:41,497 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 23:26:41,498 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 23:26:41,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 23:26:41,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 23:26:41,503 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 23:26:41,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2e54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41, skipping insertion in model container [2020-06-21 23:26:41,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 23:26:41,534 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 23:26:41,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:26:41,696 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 23:26:41,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 23:26:41,791 INFO L195 MainTranslator]: Completed translation [2020-06-21 23:26:41,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41 WrapperNode [2020-06-21 23:26:41,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 23:26:41,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 23:26:41,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 23:26:41,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 23:26:41,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 23:26:41,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 23:26:41,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 23:26:41,828 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 23:26:41,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (1/1) ... [2020-06-21 23:26:41,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 23:26:41,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 23:26:41,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 23:26:41,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 23:26:41,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (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 [2020-06-21 23:26:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 23:26:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 23:26:42,034 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 23:26:42,035 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 23:26:42,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:26:42 BoogieIcfgContainer [2020-06-21 23:26:42,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 23:26:42,037 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 23:26:42,037 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 23:26:42,039 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 23:26:42,040 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:26:42" (1/1) ... [2020-06-21 23:26:42,053 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-21 23:26:42,055 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 23:26:42,056 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 23:26:42,056 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 23:26:42,056 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 23:26:42,058 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 23:26:42,059 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 23:26:42,059 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 23:26:42,074 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 23:26:42,089 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-21 23:26:42,093 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 23:26:42,095 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:26:42,109 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-21 23:26:42,111 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-21 23:26:42,113 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 23:26:42,113 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 23:26:42,113 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 23:26:42,113 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 23:26:42,114 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-06-21 23:26:42,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:26:42 BasicIcfg [2020-06-21 23:26:42,114 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 23:26:42,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 23:26:42,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 23:26:42,119 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 23:26:42,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 11:26:41" (1/4) ... [2020-06-21 23:26:42,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b29aa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (2/4) ... [2020-06-21 23:26:42,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b29aa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:26:42" (3/4) ... [2020-06-21 23:26:42,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b29aa1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:26:42" (4/4) ... [2020-06-21 23:26:42,123 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:26:42,133 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 23:26:42,140 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 23:26:42,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 23:26:42,186 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:26:42,186 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 23:26:42,187 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 23:26:42,187 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:26:42,187 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:26:42,187 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:26:42,187 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 23:26:42,187 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:26:42,187 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 23:26:42,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-21 23:26:42,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 23:26:42,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-21 23:26:42,258 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-06-21 23:26:42,259 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 23:26:42,259 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 13 19) the Hoare annotation is: true [2020-06-21 23:26:42,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:26:42 BasicIcfg [2020-06-21 23:26:42,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 23:26:42,268 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 23:26:42,268 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 23:26:42,271 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 23:26:42,272 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:26:42,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 11:26:41" (1/5) ... [2020-06-21 23:26:42,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29c9f25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,273 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:26:42,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 11:26:41" (2/5) ... [2020-06-21 23:26:42,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29c9f25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,274 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:26:42,274 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 11:26:42" (3/5) ... [2020-06-21 23:26:42,274 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29c9f25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,274 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:26:42,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 11:26:42" (4/5) ... [2020-06-21 23:26:42,275 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29c9f25c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:26:42, skipping insertion in model container [2020-06-21 23:26:42,275 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 23:26:42,275 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 11:26:42" (5/5) ... [2020-06-21 23:26:42,277 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 23:26:42,303 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 23:26:42,304 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 23:26:42,304 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 23:26:42,304 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 23:26:42,304 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 23:26:42,305 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 23:26:42,305 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 23:26:42,305 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 23:26:42,305 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 23:26:42,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-21 23:26:42,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:26:42,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:26:42,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:26:42,332 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:26:42,332 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:26:42,333 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 23:26:42,333 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-21 23:26:42,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-21 23:26:42,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:26:42,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:26:42,334 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:26:42,334 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:26:42,339 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~bm~0_1 v_ULTIMATE.start_main_~b~0_1) (= v_ULTIMATE.start_main_~am~0_1 v_ULTIMATE.start_main_~a~0_1)) InVars {} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_1, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~bm~0, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~am~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 4#L14-2true [2020-06-21 23:26:42,339 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [35] L14-2-->L14: Formula: (> v_ULTIMATE.start_main_~am~0_7 v_ULTIMATE.start_main_~bm~0_7) InVars {ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_7, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_7} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_7, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_7} AuxVars[] AssignedVars[] 5#L14true [34] L14-->L14-2: Formula: (and (>= v_ULTIMATE.start_main_~bm~0_10 v_ULTIMATE.start_main_~am~0_10) (= v_ULTIMATE.start_main_~am~0_9 (+ v_ULTIMATE.start_main_~am~0_10 v_ULTIMATE.start_main_~a~0_4))) InVars {ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_10, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_4, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_10} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_10, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_4, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~am~0] 4#L14-2true [2020-06-21 23:26:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:26:42,345 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-06-21 23:26:42,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:26:42,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:26:42,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:26:42,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:26:42,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2080, now seen corresponding path program 1 times [2020-06-21 23:26:42,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:26:42,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:26:42,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:26:42,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 23:26:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 23:26:42,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 23:26:42,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-21 23:26:42,470 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-21 23:26:42,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 23:26:42,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 23:26:42,487 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 3 states. [2020-06-21 23:26:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 23:26:42,511 INFO L93 Difference]: Finished difference Result 4 states and 6 transitions. [2020-06-21 23:26:42,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 23:26:42,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 6 transitions. [2020-06-21 23:26:42,515 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-21 23:26:42,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 4 states and 6 transitions. [2020-06-21 23:26:42,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-21 23:26:42,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-06-21 23:26:42,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 6 transitions. [2020-06-21 23:26:42,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 23:26:42,523 INFO L706 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-21 23:26:42,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 6 transitions. [2020-06-21 23:26:42,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2020-06-21 23:26:42,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-21 23:26:42,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2020-06-21 23:26:42,554 INFO L729 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-21 23:26:42,554 INFO L609 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2020-06-21 23:26:42,554 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 23:26:42,554 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2020-06-21 23:26:42,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-06-21 23:26:42,555 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 23:26:42,555 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 23:26:42,555 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 23:26:42,555 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-21 23:26:42,556 INFO L794 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~bm~0_1 v_ULTIMATE.start_main_~b~0_1) (= v_ULTIMATE.start_main_~am~0_1 v_ULTIMATE.start_main_~a~0_1)) InVars {} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_1, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~bm~0, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~am~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 17#L14-2 [2020-06-21 23:26:42,556 INFO L796 eck$LassoCheckResult]: Loop: 17#L14-2 [35] L14-2-->L14: Formula: (> v_ULTIMATE.start_main_~am~0_7 v_ULTIMATE.start_main_~bm~0_7) InVars {ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_7, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_7} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_7, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_7} AuxVars[] AssignedVars[] 18#L14 [31] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~bm~0_8 (+ v_ULTIMATE.start_main_~bm~0_9 v_ULTIMATE.start_main_~b~0_4)) (< v_ULTIMATE.start_main_~bm~0_9 v_ULTIMATE.start_main_~am~0_8)) InVars {ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_9, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_4} OutVars{ULTIMATE.start_main_~bm~0=v_ULTIMATE.start_main_~bm~0_8, ULTIMATE.start_main_~am~0=v_ULTIMATE.start_main_~am~0_8, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_~bm~0] 17#L14-2 [2020-06-21 23:26:42,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:26:42,557 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-06-21 23:26:42,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:26:42,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:26:42,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:26:42,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:26:42,563 INFO L82 PathProgramCache]: Analyzing trace with hash 2077, now seen corresponding path program 1 times [2020-06-21 23:26:42,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:26:42,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:26:42,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 23:26:42,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 23:26:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash 54932, now seen corresponding path program 1 times [2020-06-21 23:26:42,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 23:26:42,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 23:26:42,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 23:26:42,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 23:26:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 23:26:42,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 11:26:42 BasicIcfg [2020-06-21 23:26:42,658 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 23:26:42,658 INFO L168 Benchmark]: Toolchain (without parser) took 1161.02 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 559.9 MB in the beginning and 592.7 MB in the end (delta: -32.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,660 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 23:26:42,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.36 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 559.9 MB in the beginning and 656.0 MB in the end (delta: -96.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 689.4 MB. Free memory was 656.0 MB in the beginning and 654.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,662 INFO L168 Benchmark]: Boogie Preprocessor took 18.66 ms. Allocated memory is still 689.4 MB. Free memory was 654.6 MB in the beginning and 653.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,663 INFO L168 Benchmark]: RCFGBuilder took 189.79 ms. Allocated memory is still 689.4 MB. Free memory was 653.3 MB in the beginning and 638.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,663 INFO L168 Benchmark]: BlockEncodingV2 took 77.72 ms. Allocated memory is still 689.4 MB. Free memory was 638.6 MB in the beginning and 633.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,664 INFO L168 Benchmark]: TraceAbstraction took 151.90 ms. Allocated memory is still 689.4 MB. Free memory was 633.2 MB in the beginning and 623.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,664 INFO L168 Benchmark]: BuchiAutomizer took 390.07 ms. Allocated memory is still 689.4 MB. Free memory was 623.8 MB in the beginning and 592.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 50.3 GB. [2020-06-21 23:26:42,669 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 293.36 ms. Allocated memory was 649.6 MB in the beginning and 689.4 MB in the end (delta: 39.8 MB). Free memory was 559.9 MB in the beginning and 656.0 MB in the end (delta: -96.1 MB). Peak memory consumption was 28.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.44 ms. Allocated memory is still 689.4 MB. Free memory was 656.0 MB in the beginning and 654.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.66 ms. Allocated memory is still 689.4 MB. Free memory was 654.6 MB in the beginning and 653.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 189.79 ms. Allocated memory is still 689.4 MB. Free memory was 653.3 MB in the beginning and 638.6 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.72 ms. Allocated memory is still 689.4 MB. Free memory was 638.6 MB in the beginning and 633.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 151.90 ms. Allocated memory is still 689.4 MB. Free memory was 633.2 MB in the beginning and 623.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 390.07 ms. Allocated memory is still 689.4 MB. Free memory was 623.8 MB in the beginning and 592.7 MB in the end (delta: 31.0 MB). Peak memory consumption was 31.0 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {a=1, \result=0, am=1, b=0, bm=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int a; [L7] int b; [L8] int am; [L9] int bm; [L10] am = a [L11] bm = b Loop: [L13] COND TRUE am != bm [L14] COND TRUE am > bm [L15] bm = bm+b End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 23:26:38.251 ----------------------------------------------- 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 -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 23:26:42.904 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check