/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:35:21,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:35:21,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:35:21,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:35:21,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:35:21,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:35:21,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:35:21,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:35:21,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:35:21,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:35:21,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:35:21,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:35:21,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:35:21,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:35:21,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:35:21,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:35:21,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:35:21,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:35:21,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:35:21,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:35:21,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:35:21,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:35:21,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:35:21,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:35:21,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:35:21,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:35:21,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:35:21,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:35:21,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:35:21,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:35:21,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:35:21,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:35:21,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:35:21,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:35:21,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:35:21,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:35:21,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:35:21,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:35:21,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:35:21,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:35:21,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:35:21,878 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:35:21,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:35:21,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:35:21,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:35:21,894 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:35:21,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:35:21,894 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:35:21,895 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:35:21,895 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:35:21,895 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:35:21,895 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:35:21,895 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:35:21,895 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:35:21,896 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:35:21,896 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:35:21,896 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:35:21,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:35:21,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:35:21,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:35:21,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:35:21,897 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:35:21,897 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:35:21,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:35:21,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:35:21,898 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:35:21,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:35:21,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:35:21,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:35:21,898 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:35:21,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:35:22,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:35:22,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:35:22,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:35:22,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:35:22,090 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:35:22,091 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:35:22,157 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_ABy8Oc/tmp/890b5a9fe69a43299a2808eedf90a86b/FLAG92e51d1f9 [2020-07-01 12:35:22,495 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:35:22,495 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:35:22,502 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_ABy8Oc/tmp/890b5a9fe69a43299a2808eedf90a86b/FLAG92e51d1f9 [2020-07-01 12:35:22,903 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_ABy8Oc/tmp/890b5a9fe69a43299a2808eedf90a86b [2020-07-01 12:35:22,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:35:22,916 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:35:22,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:35:22,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:35:22,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:35:22,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:35:22" (1/1) ... [2020-07-01 12:35:22,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b5f7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:22, skipping insertion in model container [2020-07-01 12:35:22,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:35:22" (1/1) ... [2020-07-01 12:35:22,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:35:22,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:35:23,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:35:23,203 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:35:23,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:35:23,239 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:35:23,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23 WrapperNode [2020-07-01 12:35:23,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:35:23,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:35:23,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:35:23,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:35:23,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:35:23,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:35:23,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:35:23,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:35:23,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:35:23,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:35:23,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:35:23,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:35:23,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:35:23,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:35:23,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:35:23,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:35:23,693 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:35:23,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:35:23 BoogieIcfgContainer [2020-07-01 12:35:23,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:35:23,698 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:35:23,698 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:35:23,701 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:35:23,704 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:35:23" (1/1) ... [2020-07-01 12:35:23,722 INFO L313 BlockEncoder]: Initial Icfg 43 locations, 48 edges [2020-07-01 12:35:23,724 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:35:23,725 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:35:23,725 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:35:23,725 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:35:23,728 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:35:23,729 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:35:23,729 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:35:23,753 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:35:23,780 INFO L200 BlockEncoder]: SBE split 20 edges [2020-07-01 12:35:23,785 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:35:23,787 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:35:23,820 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-07-01 12:35:23,823 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:35:23,824 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:35:23,825 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:35:23,825 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:35:23,826 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:35:23,826 INFO L313 BlockEncoder]: Encoded RCFG 36 locations, 59 edges [2020-07-01 12:35:23,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:35:23 BasicIcfg [2020-07-01 12:35:23,827 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:35:23,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:35:23,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:35:23,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:35:23,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:35:22" (1/4) ... [2020-07-01 12:35:23,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cc453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:35:23, skipping insertion in model container [2020-07-01 12:35:23,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:35:23" (2/4) ... [2020-07-01 12:35:23,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cc453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:35:23, skipping insertion in model container [2020-07-01 12:35:23,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:35:23" (3/4) ... [2020-07-01 12:35:23,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cc453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:35:23, skipping insertion in model container [2020-07-01 12:35:23,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:35:23" (4/4) ... [2020-07-01 12:35:23,836 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:35:23,846 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:35:23,854 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-07-01 12:35:23,868 INFO L251 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-07-01 12:35:23,891 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:35:23,892 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:35:23,892 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:35:23,892 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:35:23,892 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:35:23,892 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:35:23,892 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:35:23,892 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:35:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-07-01 12:35:23,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-01 12:35:23,914 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:35:23,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-01 12:35:23,915 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-07-01 12:35:23,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:35:23,921 INFO L82 PathProgramCache]: Analyzing trace with hash 6583120, now seen corresponding path program 1 times [2020-07-01 12:35:23,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:35:23,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779647585] [2020-07-01 12:35:23,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:35:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:35:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:35:24,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:35:24,073 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-01 12:35:24,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:35:24,100 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:35:24,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:35:24 BasicIcfg [2020-07-01 12:35:24,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:35:24,104 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:35:24,104 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:35:24,107 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:35:24,108 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:35:24,108 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:35:24,108 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:35:24,108 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:35:24,108 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:35:24,108 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:35:24,111 INFO L168 Benchmark]: Toolchain (without parser) took 1194.21 ms. Allocated memory was 514.9 MB in the beginning and 570.4 MB in the end (delta: 55.6 MB). Free memory was 438.9 MB in the beginning and 478.9 MB in the end (delta: -40.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,112 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:35:24,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.69 ms. Allocated memory was 514.9 MB in the beginning and 570.4 MB in the end (delta: 55.6 MB). Free memory was 438.2 MB in the beginning and 537.2 MB in the end (delta: -98.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.04 ms. Allocated memory is still 570.4 MB. Free memory was 536.5 MB in the beginning and 534.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,114 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 570.4 MB. Free memory was 534.4 MB in the beginning and 533.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,115 INFO L168 Benchmark]: RCFGBuilder took 385.74 ms. Allocated memory is still 570.4 MB. Free memory was 533.0 MB in the beginning and 508.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,115 INFO L168 Benchmark]: BlockEncodingV2 took 128.80 ms. Allocated memory is still 570.4 MB. Free memory was 508.0 MB in the beginning and 498.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,116 INFO L168 Benchmark]: TraceAbstraction took 275.28 ms. Allocated memory is still 570.4 MB. Free memory was 497.9 MB in the beginning and 480.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,117 INFO L168 Benchmark]: BuchiAutomizer took 4.64 ms. Allocated memory is still 570.4 MB. Free memory was 479.6 MB in the beginning and 478.9 MB in the end (delta: 673.9 kB). Peak memory consumption was 673.9 kB. Max. memory is 50.3 GB. [2020-07-01 12:35:24,121 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 43 locations, 48 edges - StatisticsResult: Encoded RCFG 36 locations, 59 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 458.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 322.69 ms. Allocated memory was 514.9 MB in the beginning and 570.4 MB in the end (delta: 55.6 MB). Free memory was 438.2 MB in the beginning and 537.2 MB in the end (delta: -98.9 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 43.04 ms. Allocated memory is still 570.4 MB. Free memory was 536.5 MB in the beginning and 534.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 570.4 MB. Free memory was 534.4 MB in the beginning and 533.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 385.74 ms. Allocated memory is still 570.4 MB. Free memory was 533.0 MB in the beginning and 508.7 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 128.80 ms. Allocated memory is still 570.4 MB. Free memory was 508.0 MB in the beginning and 498.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 275.28 ms. Allocated memory is still 570.4 MB. Free memory was 497.9 MB in the beginning and 480.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.64 ms. Allocated memory is still 570.4 MB. Free memory was 479.6 MB in the beginning and 478.9 MB in the end (delta: 673.9 kB). Peak memory consumption was 673.9 kB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] int *size; [L20] int *val; [L21] int N = __VERIFIER_nondet_int(); [L22] int *cost; [L23] int *best; [L24] int M = __VERIFIER_nondet_int(); [L5] int i, j; [L6] j = 1 [L6] COND TRUE j <= N [L7] i = 1 [L7] COND TRUE i <= M [L8] size[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 20 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=36occurred 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, 4 NumberOfCodeBlocks, 4 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 12:35:19.597 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_ABy8Oc/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:35:24.355 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check