NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:27:42,964 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:27:42,966 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:27:42,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:27:42,978 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:27:42,979 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:27:42,980 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:27:42,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:27:42,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:27:42,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:27:42,984 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:27:42,985 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:27:42,986 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:27:42,986 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:27:42,988 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:27:42,988 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:27:42,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:27:42,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:27:42,993 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:27:42,994 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:27:42,995 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:27:42,996 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:27:42,998 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:27:42,998 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:27:42,999 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:27:42,999 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:27:43,000 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:27:43,001 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:27:43,001 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:27:43,001 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:27:43,002 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:27:43,003 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:27:43,004 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:27:43,004 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:27:43,005 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:27:43,005 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:27:43,005 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:27:43,006 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:27:43,006 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:27:43,007 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 01:27:43,021 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:27:43,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:27:43,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:27:43,023 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:27:43,023 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:27:43,023 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:27:43,023 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:27:43,023 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:27:43,024 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:27:43,024 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:27:43,024 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:27:43,024 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:27:43,024 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:27:43,025 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:27:43,025 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:43,025 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:27:43,025 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:27:43,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:27:43,025 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:27:43,026 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:27:43,026 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:27:43,026 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:27:43,026 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:27:43,026 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:27:43,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:27:43,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:27:43,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:27:43,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:27:43,027 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:27:43,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:27:43,066 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:27:43,069 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:27:43,071 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:27:43,071 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:27:43,072 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:27:43,142 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/579e6b6fdbc848608b08fdace66f8c3b/FLAG194d2e877 [2020-06-22 01:27:43,488 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:27:43,488 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:27:43,495 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/579e6b6fdbc848608b08fdace66f8c3b/FLAG194d2e877 [2020-06-22 01:27:43,891 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/579e6b6fdbc848608b08fdace66f8c3b [2020-06-22 01:27:43,903 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:27:43,904 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:27:43,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:27:43,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:27:43,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:27:43,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:27:43" (1/1) ... [2020-06-22 01:27:43,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486634a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:43, skipping insertion in model container [2020-06-22 01:27:43,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:27:43" (1/1) ... [2020-06-22 01:27:43,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:27:43,940 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:27:44,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:27:44,100 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:27:44,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:27:44,184 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:27:44,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44 WrapperNode [2020-06-22 01:27:44,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:27:44,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:27:44,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:27:44,186 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:27:44,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,201 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:27:44,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:27:44,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:27:44,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:27:44,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:27:44,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:27:44,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:27:44,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:27:44,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:27:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:27:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:27:44,441 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:27:44,442 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 01:27:44,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:27:44 BoogieIcfgContainer [2020-06-22 01:27:44,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:27:44,444 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:27:44,444 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:27:44,446 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:27:44,447 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:27:44" (1/1) ... [2020-06-22 01:27:44,460 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 13 edges [2020-06-22 01:27:44,462 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:27:44,462 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:27:44,463 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:27:44,463 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:27:44,465 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:27:44,466 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:27:44,466 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:27:44,482 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:27:44,497 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 01:27:44,502 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:27:44,503 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:27:44,523 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 01:27:44,525 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 01:27:44,527 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:27:44,527 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:27:44,527 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:27:44,527 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:27:44,528 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2020-06-22 01:27:44,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:27:44 BasicIcfg [2020-06-22 01:27:44,528 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:27:44,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:27:44,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:27:44,533 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:27:44,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:27:43" (1/4) ... [2020-06-22 01:27:44,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453f6c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (2/4) ... [2020-06-22 01:27:44,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453f6c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:27:44" (3/4) ... [2020-06-22 01:27:44,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453f6c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:27:44" (4/4) ... [2020-06-22 01:27:44,537 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:27:44,548 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:27:44,556 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:27:44,574 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:27:44,604 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:27:44,605 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:27:44,605 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:27:44,605 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:27:44,605 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:27:44,605 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:27:44,606 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:27:44,606 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:27:44,606 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:27:44,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 01:27:44,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:27:44,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 01:27:44,680 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 18) no Hoare annotation was computed. [2020-06-22 01:27:44,681 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:27:44,681 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 19) no Hoare annotation was computed. [2020-06-22 01:27:44,681 INFO L448 ceAbstractionStarter]: For program point L10(lines 10 22) no Hoare annotation was computed. [2020-06-22 01:27:44,681 INFO L451 ceAbstractionStarter]: At program point L10-1(lines 9 23) the Hoare annotation is: true [2020-06-22 01:27:44,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:27:44 BasicIcfg [2020-06-22 01:27:44,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:27:44,690 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:27:44,691 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:27:44,694 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:27:44,695 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:27:44,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:27:43" (1/5) ... [2020-06-22 01:27:44,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9101daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,696 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:27:44,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:27:44" (2/5) ... [2020-06-22 01:27:44,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9101daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,697 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:27:44,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:27:44" (3/5) ... [2020-06-22 01:27:44,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9101daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,697 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:27:44,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:27:44" (4/5) ... [2020-06-22 01:27:44,698 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9101daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:27:44, skipping insertion in model container [2020-06-22 01:27:44,698 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:27:44,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:27:44" (5/5) ... [2020-06-22 01:27:44,700 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:27:44,728 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:27:44,729 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:27:44,729 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:27:44,729 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:27:44,729 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:27:44,729 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:27:44,729 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:27:44,729 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:27:44,730 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:27:44,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 01:27:44,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 01:27:44,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:27:44,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:27:44,756 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:27:44,757 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:27:44,757 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:27:44,757 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 01:27:44,758 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 01:27:44,758 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:27:44,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:27:44,758 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:27:44,758 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:27:44,763 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [37] ULTIMATE.startENTRY-->L10-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 7#L10-1true [2020-06-22 01:27:44,764 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-1true [52] L10-1-->L10: Formula: (> 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 3#L10true [54] L10-->L10-1: Formula: (and (> v_ULTIMATE.start_main_~i~0_17 35) (= v_ULTIMATE.start_main_~i~0_16 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_17} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 7#L10-1true [2020-06-22 01:27:44,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:44,769 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2020-06-22 01:27:44,771 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:44,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:44,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:44,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:44,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:44,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:44,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2627, now seen corresponding path program 1 times [2020-06-22 01:27:44,844 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:44,844 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:44,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:44,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:44,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:27:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:27:44,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:27:44,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 01:27:44,896 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:27:44,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:27:44,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:27:44,913 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2020-06-22 01:27:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:27:44,971 INFO L93 Difference]: Finished difference Result 8 states and 14 transitions. [2020-06-22 01:27:44,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:27:44,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 14 transitions. [2020-06-22 01:27:44,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 01:27:44,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 14 transitions. [2020-06-22 01:27:44,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-06-22 01:27:44,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-06-22 01:27:44,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 14 transitions. [2020-06-22 01:27:44,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:27:44,983 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 01:27:45,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 14 transitions. [2020-06-22 01:27:45,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-06-22 01:27:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 01:27:45,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 14 transitions. [2020-06-22 01:27:45,012 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 01:27:45,012 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 14 transitions. [2020-06-22 01:27:45,013 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:27:45,013 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 14 transitions. [2020-06-22 01:27:45,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 01:27:45,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:27:45,014 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:27:45,014 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 01:27:45,014 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 01:27:45,014 INFO L794 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L10-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 24#L10-1 [2020-06-22 01:27:45,015 INFO L796 eck$LassoCheckResult]: Loop: 24#L10-1 [52] L10-1-->L10: Formula: (> 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 22#L10 [55] L10-->L10-1: Formula: (and (> 0 (+ v_ULTIMATE.start_main_~i~0_17 5)) (= v_ULTIMATE.start_main_~i~0_16 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_17} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 24#L10-1 [2020-06-22 01:27:45,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,015 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2020-06-22 01:27:45,015 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:45,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2628, now seen corresponding path program 1 times [2020-06-22 01:27:45,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,022 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:27:45,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,028 INFO L82 PathProgramCache]: Analyzing trace with hash 67015, now seen corresponding path program 1 times [2020-06-22 01:27:45,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:45,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,071 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:27:45,072 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:27:45,073 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:27:45,073 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:27:45,073 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:27:45,073 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:45,073 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:27:45,073 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:27:45,074 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:27:45,074 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:27:45,074 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:27:45,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,177 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:27:45,178 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:45,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:27:45,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:27:45,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:27:45,220 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:45,226 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:27:45,226 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:27:45,254 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:27:45,255 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:45,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:27:45,266 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:27:45,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:27:45,299 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:27:45,336 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:27:45,339 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:27:45,339 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:27:45,339 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:27:45,339 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:27:45,339 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:27:45,340 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:27:45,340 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:27:45,340 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:27:45,340 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:27:45,340 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:27:45,340 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:27:45,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 01:27:45,449 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:27:45,455 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:27:45,457 INFO L122 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 [2020-06-22 01:27:45,459 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:27:45,459 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:27:45,459 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:27:45,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:27:45,464 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:27:45,465 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:27:45,475 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:27:45,475 INFO L122 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 [2020-06-22 01:27:45,476 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:27:45,476 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:27:45,476 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:27:45,476 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:27:45,479 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 01:27:45,479 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 01:27:45,487 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:27:45,488 INFO L122 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 [2020-06-22 01:27:45,489 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:27:45,489 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:27:45,489 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:27:45,490 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:27:45,490 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:27:45,490 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:27:45,491 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:27:45,496 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:27:45,501 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:27:45,501 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:27:45,503 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:27:45,503 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:27:45,503 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:27:45,504 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 01:27:45,505 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:27:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:27:45,546 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 01:27:45,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:27:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:27:45,555 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:27:45,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:27:45,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:27:45,576 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 01:27:45,579 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 2 loop predicates [2020-06-22 01:27:45,580 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-06-22 01:27:45,659 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 14 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 26 states and 44 transitions. Complement of second has 8 states. [2020-06-22 01:27:45,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-06-22 01:27:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:27:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2020-06-22 01:27:45,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 01:27:45,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:27:45,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 01:27:45,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:27:45,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 01:27:45,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:27:45,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 44 transitions. [2020-06-22 01:27:45,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-06-22 01:27:45,672 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 43 transitions. [2020-06-22 01:27:45,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-06-22 01:27:45,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-06-22 01:27:45,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 43 transitions. [2020-06-22 01:27:45,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:27:45,673 INFO L706 BuchiCegarLoop]: Abstraction has 25 states and 43 transitions. [2020-06-22 01:27:45,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 43 transitions. [2020-06-22 01:27:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2020-06-22 01:27:45,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 01:27:45,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 33 transitions. [2020-06-22 01:27:45,676 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 33 transitions. [2020-06-22 01:27:45,677 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 33 transitions. [2020-06-22 01:27:45,677 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:27:45,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 33 transitions. [2020-06-22 01:27:45,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2020-06-22 01:27:45,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:27:45,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:27:45,678 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:27:45,678 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 01:27:45,679 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY [37] ULTIMATE.startENTRY-->L10-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 98#L10-1 [52] L10-1-->L10: Formula: (> 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 92#L10 [2020-06-22 01:27:45,679 INFO L796 eck$LassoCheckResult]: Loop: 92#L10 [35] L10-->L11: Formula: (and (<= v_ULTIMATE.start_main_~i~0_8 35) (<= 0 (+ v_ULTIMATE.start_main_~i~0_8 5))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 93#L11 [38] L11-->L10-1: Formula: (and (< v_ULTIMATE.start_main_~i~0_10 0) (= v_ULTIMATE.start_main_~i~0_9 (- 5))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 104#L10-1 [52] L10-1-->L10: Formula: (> 0 v_ULTIMATE.start_main_~i~0_7) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[] 92#L10 [2020-06-22 01:27:45,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,679 INFO L82 PathProgramCache]: Analyzing trace with hash 2160, now seen corresponding path program 1 times [2020-06-22 01:27:45,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:45,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,686 INFO L82 PathProgramCache]: Analyzing trace with hash 64656, now seen corresponding path program 1 times [2020-06-22 01:27:45,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:45,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:27:45,693 INFO L82 PathProgramCache]: Analyzing trace with hash 64383425, now seen corresponding path program 1 times [2020-06-22 01:27:45,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:27:45,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:27:45,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:27:45,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:27:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:27:45,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:27:45 BasicIcfg [2020-06-22 01:27:45,752 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:27:45,753 INFO L168 Benchmark]: Toolchain (without parser) took 1849.30 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 558.8 MB in the beginning and 508.9 MB in the end (delta: 49.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,754 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:27:45,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.46 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 558.8 MB in the beginning and 639.3 MB in the end (delta: -80.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 671.6 MB. Free memory was 638.0 MB in the beginning and 634.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,756 INFO L168 Benchmark]: Boogie Preprocessor took 18.50 ms. Allocated memory is still 671.6 MB. Free memory was 634.9 MB in the beginning and 633.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,757 INFO L168 Benchmark]: RCFGBuilder took 203.81 ms. Allocated memory is still 671.6 MB. Free memory was 633.5 MB in the beginning and 620.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,758 INFO L168 Benchmark]: BlockEncodingV2 took 84.61 ms. Allocated memory is still 671.6 MB. Free memory was 620.4 MB in the beginning and 615.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,759 INFO L168 Benchmark]: TraceAbstraction took 160.71 ms. Allocated memory is still 671.6 MB. Free memory was 615.0 MB in the beginning and 606.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,759 INFO L168 Benchmark]: BuchiAutomizer took 1061.78 ms. Allocated memory is still 671.6 MB. Free memory was 605.5 MB in the beginning and 508.9 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 MB. Max. memory is 50.3 GB. [2020-06-22 01:27:45,764 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 13 edges - StatisticsResult: Encoded RCFG 5 locations, 10 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.46 ms. Allocated memory was 649.6 MB in the beginning and 671.6 MB in the end (delta: 22.0 MB). Free memory was 558.8 MB in the beginning and 639.3 MB in the end (delta: -80.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.03 ms. Allocated memory is still 671.6 MB. Free memory was 638.0 MB in the beginning and 634.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.50 ms. Allocated memory is still 671.6 MB. Free memory was 634.9 MB in the beginning and 633.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 203.81 ms. Allocated memory is still 671.6 MB. Free memory was 633.5 MB in the beginning and 620.4 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 84.61 ms. Allocated memory is still 671.6 MB. Free memory was 620.4 MB in the beginning and 615.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 160.71 ms. Allocated memory is still 671.6 MB. Free memory was 615.0 MB in the beginning and 606.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1061.78 ms. Allocated memory is still 671.6 MB. Free memory was 605.5 MB in the beginning and 508.9 MB in the end (delta: 96.6 MB). Peak memory consumption was 96.6 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 18 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 20 SDslu, 0 SDs, 0 SdLazy, 54 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq139 hnf92 smp100 dnf100 smp100 tf115 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fcb470c=0, \result=0, i=-5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i != 0 Loop: [L10] COND TRUE -5 <= i && i <= 35 [L11] COND TRUE i < 0 [L12] i = -5 [L9] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 01:27:40.637 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:27:46.007 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check