/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:20:36,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:20:36,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:20:36,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:20:36,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:20:36,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:20:36,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:20:36,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:20:36,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:20:36,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:20:36,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:20:36,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:20:36,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:20:36,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:20:36,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:20:36,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:20:36,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:20:36,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:20:36,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:20:36,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:20:36,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:20:36,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:20:36,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:20:36,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:20:36,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:20:36,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:20:36,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:20:36,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:20:36,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:20:36,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:20:36,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:20:36,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:20:36,560 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:20:36,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:20:36,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:20:36,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:20:36,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:20:36,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:20:36,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:20:36,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:20:36,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:20:36,565 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:20:36,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:20:36,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:20:36,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:20:36,580 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:20:36,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:20:36,580 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:36,581 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:20:36,581 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:20:36,581 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:20:36,581 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:20:36,581 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:20:36,582 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:20:36,582 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:20:36,582 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:20:36,582 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:20:36,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:20:36,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:20:36,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:20:36,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:20:36,583 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:20:36,583 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:20:36,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:20:36,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:20:36,584 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:20:36,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:20:36,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:20:36,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:20:36,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:20:36,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:20:36,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:20:36,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:20:36,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:20:36,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:20:36,766 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:20:36,767 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:20:36,828 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_l9unmD/tmp/431f757b8ef34cebb6650a66e182aaff/FLAG4dc1b79c6 [2020-07-01 12:20:37,154 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:20:37,155 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:20:37,161 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_l9unmD/tmp/431f757b8ef34cebb6650a66e182aaff/FLAG4dc1b79c6 [2020-07-01 12:20:37,562 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_l9unmD/tmp/431f757b8ef34cebb6650a66e182aaff [2020-07-01 12:20:37,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:20:37,575 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:20:37,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:37,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:20:37,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:20:37,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8efd42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37, skipping insertion in model container [2020-07-01 12:20:37,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:20:37,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:20:37,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:37,856 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:20:37,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:37,890 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:20:37,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37 WrapperNode [2020-07-01 12:20:37,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:37,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:37,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:20:37,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:20:37,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:37,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:20:37,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:20:37,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:20:37,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... [2020-07-01 12:20:37,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:20:37,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:20:37,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:20:37,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:20:37,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:20:38,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:20:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:20:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:20:38,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:20:38,279 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:20:38,279 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:20:38,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:38 BoogieIcfgContainer [2020-07-01 12:20:38,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:20:38,284 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:20:38,284 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:20:38,286 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:20:38,287 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:38" (1/1) ... [2020-07-01 12:20:38,302 INFO L313 BlockEncoder]: Initial Icfg 29 locations, 33 edges [2020-07-01 12:20:38,304 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:20:38,304 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:20:38,305 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:20:38,305 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:38,307 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:20:38,308 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:20:38,309 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:20:38,336 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:20:38,359 INFO L200 BlockEncoder]: SBE split 12 edges [2020-07-01 12:20:38,363 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:20:38,365 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:38,400 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2020-07-01 12:20:38,403 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:20:38,404 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:20:38,404 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:38,405 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:20:38,405 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:20:38,406 INFO L313 BlockEncoder]: Encoded RCFG 21 locations, 35 edges [2020-07-01 12:20:38,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:38 BasicIcfg [2020-07-01 12:20:38,406 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:20:38,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:20:38,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:20:38,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:20:38,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:20:37" (1/4) ... [2020-07-01 12:20:38,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df25bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:38, skipping insertion in model container [2020-07-01 12:20:38,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:37" (2/4) ... [2020-07-01 12:20:38,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df25bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:38, skipping insertion in model container [2020-07-01 12:20:38,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:38" (3/4) ... [2020-07-01 12:20:38,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df25bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:38, skipping insertion in model container [2020-07-01 12:20:38,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:38" (4/4) ... [2020-07-01 12:20:38,416 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:20:38,427 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:20:38,434 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-07-01 12:20:38,448 INFO L251 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-07-01 12:20:38,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:20:38,472 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:20:38,472 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:20:38,472 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:20:38,472 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:20:38,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:20:38,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:20:38,473 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:20:38,487 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-01 12:20:38,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:20:38,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:20:38,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:20:38,494 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 12:20:38,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:38,500 INFO L82 PathProgramCache]: Analyzing trace with hash 154700, now seen corresponding path program 1 times [2020-07-01 12:20:38,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:38,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286804413] [2020-07-01 12:20:38,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:38,639 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:20:38,640 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-01 12:20:38,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:20:38,661 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:20:38,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:38 BasicIcfg [2020-07-01 12:20:38,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:20:38,665 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:20:38,665 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:20:38,668 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:20:38,669 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:38,669 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:38,669 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:38,669 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:38,669 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:38,669 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:20:38,672 INFO L168 Benchmark]: Toolchain (without parser) took 1095.96 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 561.6 MB in the beginning and 599.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,673 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:20:38,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.73 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 561.6 MB in the beginning and 655.4 MB in the end (delta: -93.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,674 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 692.6 MB. Free memory was 655.4 MB in the beginning and 653.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,675 INFO L168 Benchmark]: Boogie Preprocessor took 25.01 ms. Allocated memory is still 692.6 MB. Free memory was 653.1 MB in the beginning and 652.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,675 INFO L168 Benchmark]: RCFGBuilder took 327.15 ms. Allocated memory is still 692.6 MB. Free memory was 651.0 MB in the beginning and 629.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,676 INFO L168 Benchmark]: BlockEncodingV2 took 122.90 ms. Allocated memory is still 692.6 MB. Free memory was 629.9 MB in the beginning and 621.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,677 INFO L168 Benchmark]: TraceAbstraction took 256.63 ms. Allocated memory is still 692.6 MB. Free memory was 621.2 MB in the beginning and 600.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,677 INFO L168 Benchmark]: BuchiAutomizer took 4.43 ms. Allocated memory is still 692.6 MB. Free memory was 600.7 MB in the beginning and 599.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:38,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 29 locations, 33 edges - StatisticsResult: Encoded RCFG 21 locations, 35 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 314.73 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 561.6 MB in the beginning and 655.4 MB in the end (delta: -93.7 MB). Peak memory consumption was 28.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 39.19 ms. Allocated memory is still 692.6 MB. Free memory was 655.4 MB in the beginning and 653.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 25.01 ms. Allocated memory is still 692.6 MB. Free memory was 653.1 MB in the beginning and 652.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 327.15 ms. Allocated memory is still 692.6 MB. Free memory was 651.0 MB in the beginning and 629.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 122.90 ms. Allocated memory is still 692.6 MB. Free memory was 629.9 MB in the beginning and 621.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 256.63 ms. Allocated memory is still 692.6 MB. Free memory was 621.2 MB in the beginning and 600.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.43 ms. Allocated memory is still 692.6 MB. Free memory was 600.7 MB in the beginning and 599.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L18] int *a; [L19] int N = __VERIFIER_nondet_int(); [L5] int i, j, v; [L6] i = 2 [L6] COND TRUE i <= N [L7] a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 12:20:34.353 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_l9unmD/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:20:38.915 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check