NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:28:24,791 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:28:24,794 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:28:24,805 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:28:24,805 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:28:24,806 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:28:24,807 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:28:24,809 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:28:24,810 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:28:24,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:28:24,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:28:24,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:28:24,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:28:24,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:28:24,815 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:28:24,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:28:24,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:28:24,818 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:28:24,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:28:24,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:28:24,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:28:24,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:28:24,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:28:24,825 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:28:24,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:28:24,826 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:28:24,826 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:28:24,827 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:28:24,827 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:28:24,828 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:28:24,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:28:24,829 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:28:24,830 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:28:24,830 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:28:24,831 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:28:24,831 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:28:24,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:28:24,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:28:24,833 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:28:24,833 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 22:28:24,847 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:28:24,847 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:28:24,848 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:28:24,848 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:28:24,849 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:28:24,849 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:28:24,849 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:28:24,849 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:28:24,849 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:28:24,849 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:28:24,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:28:24,850 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:28:24,851 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:28:24,851 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:28:24,851 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:28:24,851 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:28:24,851 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:28:24,851 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:28:24,852 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:28:24,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:28:24,852 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:28:24,852 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:28:24,852 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:28:24,852 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:28:24,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:28:24,890 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:28:24,893 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:28:24,894 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:28:24,895 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:28:24,896 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:28:24,963 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/dd98355343b3438699c30250b46f2d24/FLAG11ce845e7 [2020-06-21 22:28:25,303 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:28:25,304 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:28:25,310 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/dd98355343b3438699c30250b46f2d24/FLAG11ce845e7 [2020-06-21 22:28:25,713 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/dd98355343b3438699c30250b46f2d24 [2020-06-21 22:28:25,724 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:28:25,726 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:28:25,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:28:25,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:28:25,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:28:25,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:28:25" (1/1) ... [2020-06-21 22:28:25,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b6c847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:25, skipping insertion in model container [2020-06-21 22:28:25,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:28:25" (1/1) ... [2020-06-21 22:28:25,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:28:25,759 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:28:25,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:28:25,918 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:28:26,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:28:26,015 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:28:26,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26 WrapperNode [2020-06-21 22:28:26,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:28:26,017 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:28:26,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:28:26,017 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:28:26,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:28:26,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:28:26,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:28:26,054 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:28:26,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:28:26,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:28:26,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:28:26,074 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:28:26,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (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 22:28:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:28:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:28:26,269 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:28:26,270 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:28:26,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:28:26 BoogieIcfgContainer [2020-06-21 22:28:26,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:28:26,272 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:28:26,272 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:28:26,274 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:28:26,275 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:28:26" (1/1) ... [2020-06-21 22:28:26,290 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-21 22:28:26,292 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:28:26,293 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:28:26,294 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:28:26,294 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:28:26,296 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:28:26,297 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:28:26,297 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:28:26,314 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:28:26,331 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-21 22:28:26,336 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:28:26,338 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:28:26,348 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-21 22:28:26,350 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-21 22:28:26,352 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:28:26,352 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:28:26,352 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:28:26,352 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:28:26,353 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges [2020-06-21 22:28:26,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:28:26 BasicIcfg [2020-06-21 22:28:26,353 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:28:26,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:28:26,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:28:26,358 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:28:26,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:28:25" (1/4) ... [2020-06-21 22:28:26,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b563a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (2/4) ... [2020-06-21 22:28:26,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b563a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:28:26" (3/4) ... [2020-06-21 22:28:26,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b563a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:28:26" (4/4) ... [2020-06-21 22:28:26,362 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:28:26,371 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:28:26,380 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-21 22:28:26,397 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-21 22:28:26,425 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:28:26,426 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:28:26,426 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:28:26,426 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:28:26,426 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:28:26,426 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:28:26,427 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:28:26,427 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:28:26,427 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:28:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-21 22:28:26,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-21 22:28:26,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-21 22:28:26,500 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-21 22:28:26,500 INFO L451 ceAbstractionStarter]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2020-06-21 22:28:26,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:28:26 BasicIcfg [2020-06-21 22:28:26,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:28:26,508 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:28:26,508 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:28:26,511 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:28:26,512 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:28:26,512 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.06 10:28:25" (1/5) ... [2020-06-21 22:28:26,513 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@409baec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,513 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:28:26,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:28:26" (2/5) ... [2020-06-21 22:28:26,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@409baec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,514 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:28:26,514 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:28:26" (3/5) ... [2020-06-21 22:28:26,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@409baec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,514 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:28:26,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:28:26" (4/5) ... [2020-06-21 22:28:26,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@409baec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:28:26, skipping insertion in model container [2020-06-21 22:28:26,515 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-21 22:28:26,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:28:26" (5/5) ... [2020-06-21 22:28:26,517 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:28:26,543 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:28:26,544 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-21 22:28:26,544 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-21 22:28:26,544 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:28:26,544 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:28:26,544 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:28:26,544 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-21 22:28:26,544 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:28:26,545 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-21 22:28:26,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:28:26,565 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:28:26,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:28:26,565 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:28:26,571 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:28:26,571 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:28:26,571 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-21 22:28:26,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-21 22:28:26,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:28:26,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:28:26,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:28:26,573 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:28:26,573 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:28:26,578 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L14-2: Formula: (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 4#L14-2true [2020-06-21 22:28:26,579 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [32] L14-2-->L14-2: Formula: (let ((.cse0 (+ (* 2 v_ULTIMATE.start_main_~y~0_6) 1))) (and (<= v_ULTIMATE.start_main_~y~0_6 10) (< .cse0 0) (<= 0 v_ULTIMATE.start_main_~y~0_6) (= (+ (div .cse0 2) 1) v_ULTIMATE.start_main_~y~0_5) (> (mod 1 2) 0))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 4#L14-2true [2020-06-21 22:28:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:28:26,585 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-06-21 22:28:26,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:28:26,587 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:28:26,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:28:26,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:28:26,646 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-06-21 22:28:26,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:28:26,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:28:26,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:28:26,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:28:26,682 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 22:28:26,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:28:26,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-06-21 22:28:26,689 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-21 22:28:26,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-06-21 22:28:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-06-21 22:28:26,705 INFO L87 Difference]: Start difference. First operand 2 states. Second operand 2 states. [2020-06-21 22:28:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:28:26,720 INFO L93 Difference]: Finished difference Result 2 states and 2 transitions. [2020-06-21 22:28:26,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-21 22:28:26,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2 states and 2 transitions. [2020-06-21 22:28:26,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:28:26,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2 states to 2 states and 2 transitions. [2020-06-21 22:28:26,730 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2020-06-21 22:28:26,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2020-06-21 22:28:26,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2 transitions. [2020-06-21 22:28:26,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-21 22:28:26,731 INFO L706 BuchiCegarLoop]: Abstraction has 2 states and 2 transitions. [2020-06-21 22:28:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2 states and 2 transitions. [2020-06-21 22:28:26,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2 to 2. [2020-06-21 22:28:26,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-21 22:28:26,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2020-06-21 22:28:26,761 INFO L729 BuchiCegarLoop]: Abstraction has 2 states and 2 transitions. [2020-06-21 22:28:26,761 INFO L609 BuchiCegarLoop]: Abstraction has 2 states and 2 transitions. [2020-06-21 22:28:26,761 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-21 22:28:26,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states and 2 transitions. [2020-06-21 22:28:26,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-21 22:28:26,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-21 22:28:26,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-21 22:28:26,762 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-21 22:28:26,762 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-21 22:28:26,762 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRY [18] ULTIMATE.startENTRY-->L14-2: Formula: (= v_ULTIMATE.start_main_~y~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_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0] 13#L14-2 [2020-06-21 22:28:26,763 INFO L796 eck$LassoCheckResult]: Loop: 13#L14-2 [29] L14-2-->L14-2: Formula: (let ((.cse0 (+ (* 2 v_ULTIMATE.start_main_~y~0_6) 1))) (and (<= v_ULTIMATE.start_main_~y~0_6 10) (= (div .cse0 2) v_ULTIMATE.start_main_~y~0_5) (>= .cse0 0) (<= 0 v_ULTIMATE.start_main_~y~0_6))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 13#L14-2 [2020-06-21 22:28:26,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:28:26,763 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 2 times [2020-06-21 22:28:26,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:28:26,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:28:26,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:28:26,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:28:26,768 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2020-06-21 22:28:26,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:28:26,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:28:26,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,769 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-21 22:28:26,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:28:26,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1548, now seen corresponding path program 1 times [2020-06-21 22:28:26,776 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:28:26,776 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:28:26,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:28:26,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:28:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:28:26,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.06 10:28:26 BasicIcfg [2020-06-21 22:28:26,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:28:26,861 INFO L168 Benchmark]: Toolchain (without parser) took 1135.87 ms. Allocated memory was 649.6 MB in the beginning and 677.9 MB in the end (delta: 28.3 MB). Free memory was 558.9 MB in the beginning and 581.6 MB in the end (delta: -22.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,863 INFO L168 Benchmark]: CDTParser took 0.17 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 22:28:26,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.25 ms. Allocated memory was 649.6 MB in the beginning and 677.9 MB in the end (delta: 28.3 MB). Free memory was 558.9 MB in the beginning and 642.7 MB in the end (delta: -83.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.40 ms. Allocated memory is still 677.9 MB. Free memory was 642.7 MB in the beginning and 641.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,864 INFO L168 Benchmark]: Boogie Preprocessor took 19.91 ms. Allocated memory is still 677.9 MB. Free memory was 641.4 MB in the beginning and 640.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,865 INFO L168 Benchmark]: RCFGBuilder took 197.48 ms. Allocated memory is still 677.9 MB. Free memory was 640.0 MB in the beginning and 627.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,866 INFO L168 Benchmark]: BlockEncodingV2 took 81.70 ms. Allocated memory is still 677.9 MB. Free memory was 627.1 MB in the beginning and 621.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,866 INFO L168 Benchmark]: TraceAbstraction took 153.29 ms. Allocated memory is still 677.9 MB. Free memory was 621.7 MB in the beginning and 613.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,867 INFO L168 Benchmark]: BuchiAutomizer took 352.18 ms. Allocated memory is still 677.9 MB. Free memory was 612.3 MB in the beginning and 581.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. [2020-06-21 22:28:26,872 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 5 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 580.5 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 289.25 ms. Allocated memory was 649.6 MB in the beginning and 677.9 MB in the end (delta: 28.3 MB). Free memory was 558.9 MB in the beginning and 642.7 MB in the end (delta: -83.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 36.40 ms. Allocated memory is still 677.9 MB. Free memory was 642.7 MB in the beginning and 641.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.91 ms. Allocated memory is still 677.9 MB. Free memory was 641.4 MB in the beginning and 640.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * RCFGBuilder took 197.48 ms. Allocated memory is still 677.9 MB. Free memory was 640.0 MB in the beginning and 627.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 81.70 ms. Allocated memory is still 677.9 MB. Free memory was 627.1 MB in the beginning and 621.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.29 ms. Allocated memory is still 677.9 MB. Free memory was 621.7 MB in the beginning and 613.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 352.18 ms. Allocated memory is still 677.9 MB. Free memory was 612.3 MB in the beginning and 581.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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 2 locations. The remainder module has 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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 2 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, 1 SolverSat, 2 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: 14]: 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@698506e2=0, \result=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 22:28:22.554 ----------------------------------------------- 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 22:28:27.105 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check