MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:41:41,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:41:41,941 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:41:41,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:41:41,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:41:41,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:41:41,956 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:41:41,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:41:41,959 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:41:41,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:41:41,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:41:41,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:41:41,962 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:41:41,963 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:41:41,964 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:41:41,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:41:41,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:41:41,968 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:41:41,970 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:41:41,972 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:41:41,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:41:41,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:41:41,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:41:41,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:41:41,977 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:41:41,978 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:41:41,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:41:41,980 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:41:41,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:41:41,981 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:41:41,982 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:41:41,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:41:41,983 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:41:41,984 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:41:41,984 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:41:41,985 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:41:41,985 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:41:41,986 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:41:41,986 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:41:41,987 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 08:41:42,003 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:41:42,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:41:42,004 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:41:42,005 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:41:42,005 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:41:42,005 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:41:42,005 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:41:42,005 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:41:42,006 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:41:42,007 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:41:42,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:41:42,007 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:41:42,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:41:42,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:41:42,007 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:41:42,008 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:41:42,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:41:42,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:41:42,008 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:41:42,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:41:42,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:41:42,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:41:42,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:41:42,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:41:42,035 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:41:42,048 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:41:42,052 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:41:42,053 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:41:42,054 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:41:42,055 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 08:41:42,167 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/58d6b7b576114ecf88640096790cf7ff/FLAGcf5c184ee [2020-06-22 08:41:42,522 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:41:42,522 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 08:41:42,523 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-06-22 08:41:42,529 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/58d6b7b576114ecf88640096790cf7ff/FLAGcf5c184ee [2020-06-22 08:41:42,928 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/58d6b7b576114ecf88640096790cf7ff [2020-06-22 08:41:42,942 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:41:42,943 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:41:42,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:41:42,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:41:42,949 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:41:42,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:41:42" (1/1) ... [2020-06-22 08:41:42,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7301b674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:42, skipping insertion in model container [2020-06-22 08:41:42,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:41:42" (1/1) ... [2020-06-22 08:41:42,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:41:42,980 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:41:43,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:41:43,155 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:41:43,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:41:43,267 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:41:43,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43 WrapperNode [2020-06-22 08:41:43,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:41:43,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:41:43,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:41:43,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:41:43,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:41:43,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:41:43,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:41:43,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:41:43,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:41:43,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:41:43,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:41:43,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:41:43,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:41:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-22 08:41:43,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:41:43,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:41:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 08:41:43,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-06-22 08:41:43,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-22 08:41:43,677 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:41:43,678 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:41:43,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:41:43 BoogieIcfgContainer [2020-06-22 08:41:43,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:41:43,680 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:41:43,680 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:41:43,682 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:41:43,683 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:41:43" (1/1) ... [2020-06-22 08:41:43,702 INFO L313 BlockEncoder]: Initial Icfg 26 locations, 29 edges [2020-06-22 08:41:43,704 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:41:43,704 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:41:43,705 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:41:43,705 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:41:43,707 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:41:43,708 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:41:43,709 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:41:43,735 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:41:43,765 INFO L200 BlockEncoder]: SBE split 13 edges [2020-06-22 08:41:43,770 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:41:43,772 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:41:43,792 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-06-22 08:41:43,795 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 08:41:43,797 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:41:43,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:41:43,798 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:41:43,798 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:41:43,799 INFO L313 BlockEncoder]: Encoded RCFG 20 locations, 36 edges [2020-06-22 08:41:43,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:41:43 BasicIcfg [2020-06-22 08:41:43,799 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:41:43,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:41:43,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:41:43,804 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:41:43,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:41:42" (1/4) ... [2020-06-22 08:41:43,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b98c6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:41:43, skipping insertion in model container [2020-06-22 08:41:43,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:41:43" (2/4) ... [2020-06-22 08:41:43,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b98c6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:41:43, skipping insertion in model container [2020-06-22 08:41:43,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:41:43" (3/4) ... [2020-06-22 08:41:43,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b98c6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:41:43, skipping insertion in model container [2020-06-22 08:41:43,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:41:43" (4/4) ... [2020-06-22 08:41:43,810 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:41:43,821 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:41:43,829 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-06-22 08:41:43,846 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-06-22 08:41:43,875 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:41:43,876 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:41:43,876 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:41:43,876 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:41:43,876 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:41:43,877 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:41:43,877 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:41:43,877 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:41:43,877 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:41:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-06-22 08:41:43,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 08:41:43,899 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:41:43,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 08:41:43,900 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2020-06-22 08:41:43,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:41:43,905 INFO L82 PathProgramCache]: Analyzing trace with hash 139153826, now seen corresponding path program 1 times [2020-06-22 08:41:43,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:41:43,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:41:43,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:43,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:41:43,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:41:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:41:44,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:41:44,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 08:41:44,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 08:41:44,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:41:44,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:41:44,089 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-06-22 08:41:44,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:41:44,284 INFO L93 Difference]: Finished difference Result 53 states and 94 transitions. [2020-06-22 08:41:44,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:41:44,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-22 08:41:44,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 08:41:44,302 INFO L225 Difference]: With dead ends: 53 [2020-06-22 08:41:44,303 INFO L226 Difference]: Without dead ends: 37 [2020-06-22 08:41:44,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:41:44,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-06-22 08:41:44,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 21. [2020-06-22 08:41:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-06-22 08:41:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 39 transitions. [2020-06-22 08:41:44,349 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 39 transitions. Word has length 5 [2020-06-22 08:41:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 08:41:44,349 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 39 transitions. [2020-06-22 08:41:44,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 08:41:44,350 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 39 transitions. [2020-06-22 08:41:44,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 08:41:44,350 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:41:44,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 08:41:44,350 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2020-06-22 08:41:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:41:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash 139153857, now seen corresponding path program 1 times [2020-06-22 08:41:44,351 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:41:44,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:41:44,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:41:44,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:41:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:41:44,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:41:44,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 08:41:44,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 08:41:44,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:41:44,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:41:44,387 INFO L87 Difference]: Start difference. First operand 21 states and 39 transitions. Second operand 3 states. [2020-06-22 08:41:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:41:44,438 INFO L93 Difference]: Finished difference Result 37 states and 66 transitions. [2020-06-22 08:41:44,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:41:44,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-22 08:41:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 08:41:44,440 INFO L225 Difference]: With dead ends: 37 [2020-06-22 08:41:44,440 INFO L226 Difference]: Without dead ends: 21 [2020-06-22 08:41:44,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:41:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-06-22 08:41:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-06-22 08:41:44,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-06-22 08:41:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 35 transitions. [2020-06-22 08:41:44,445 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 35 transitions. Word has length 5 [2020-06-22 08:41:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 08:41:44,445 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 35 transitions. [2020-06-22 08:41:44,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 08:41:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 35 transitions. [2020-06-22 08:41:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 08:41:44,446 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:41:44,446 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 08:41:44,446 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2020-06-22 08:41:44,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:41:44,447 INFO L82 PathProgramCache]: Analyzing trace with hash 139153888, now seen corresponding path program 1 times [2020-06-22 08:41:44,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:41:44,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:41:44,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:41:44,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:41:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:41:44,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:41:44,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 08:41:44,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-22 08:41:44,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 08:41:44,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 08:41:44,487 INFO L87 Difference]: Start difference. First operand 21 states and 35 transitions. Second operand 4 states. [2020-06-22 08:41:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:41:44,560 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2020-06-22 08:41:44,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 08:41:44,561 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-06-22 08:41:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 08:41:44,562 INFO L225 Difference]: With dead ends: 21 [2020-06-22 08:41:44,562 INFO L226 Difference]: Without dead ends: 16 [2020-06-22 08:41:44,562 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-06-22 08:41:44,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-06-22 08:41:44,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-06-22 08:41:44,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-06-22 08:41:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2020-06-22 08:41:44,566 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 25 transitions. Word has length 5 [2020-06-22 08:41:44,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 08:41:44,566 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 25 transitions. [2020-06-22 08:41:44,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-22 08:41:44,566 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2020-06-22 08:41:44,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-22 08:41:44,567 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:41:44,567 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-22 08:41:44,567 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION]=== [2020-06-22 08:41:44,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:41:44,568 INFO L82 PathProgramCache]: Analyzing trace with hash 139153890, now seen corresponding path program 1 times [2020-06-22 08:41:44,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:41:44,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:41:44,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:41:44,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:41:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:41:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:41:44,612 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2020-06-22 08:41:44,633 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-22 08:41:44,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:41:44 BasicIcfg [2020-06-22 08:41:44,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:41:44,636 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:41:44,636 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:41:44,640 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:41:44,640 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:41:44,640 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:41:44,640 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:41:44,641 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:41:44,641 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:41:44,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:41:44,641 INFO L168 Benchmark]: Toolchain (without parser) took 1699.00 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 566.6 MB in the beginning and 560.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 51.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,643 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:41:44,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.92 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 565.3 MB in the beginning and 660.9 MB in the end (delta: -95.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 694.7 MB. Free memory was 660.9 MB in the beginning and 657.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,645 INFO L168 Benchmark]: Boogie Preprocessor took 25.92 ms. Allocated memory is still 694.7 MB. Free memory was 657.8 MB in the beginning and 656.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,646 INFO L168 Benchmark]: RCFGBuilder took 340.96 ms. Allocated memory is still 694.7 MB. Free memory was 656.5 MB in the beginning and 635.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,646 INFO L168 Benchmark]: BlockEncodingV2 took 119.75 ms. Allocated memory is still 694.7 MB. Free memory was 635.7 MB in the beginning and 629.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,647 INFO L168 Benchmark]: TraceAbstraction took 835.08 ms. Allocated memory is still 694.7 MB. Free memory was 627.6 MB in the beginning and 561.3 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,648 INFO L168 Benchmark]: BuchiAutomizer took 4.73 ms. Allocated memory is still 694.7 MB. Free memory was 561.3 MB in the beginning and 560.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:41:44,652 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 26 locations, 29 edges - StatisticsResult: Encoded RCFG 20 locations, 36 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 591.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 323.92 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 565.3 MB in the beginning and 660.9 MB in the end (delta: -95.6 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 694.7 MB. Free memory was 660.9 MB in the beginning and 657.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 25.92 ms. Allocated memory is still 694.7 MB. Free memory was 657.8 MB in the beginning and 656.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 340.96 ms. Allocated memory is still 694.7 MB. Free memory was 656.5 MB in the beginning and 635.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 119.75 ms. Allocated memory is still 694.7 MB. Free memory was 635.7 MB in the beginning and 629.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 835.08 ms. Allocated memory is still 694.7 MB. Free memory was 627.6 MB in the beginning and 561.3 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.73 ms. Allocated memory is still 694.7 MB. Free memory was 561.3 MB in the beginning and 560.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L5] int i, j; [L6] int length = __VERIFIER_nondet_int(); [L7] COND TRUE length < 1 [L7] length = 1 [L8] int *arr = alloca(length); [L9] COND FALSE !(!arr) [L10] int *a = arr; [L11] \read(*a) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 10 error locations. UNSAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 93 SDslu, 27 SDs, 0 SdLazy, 120 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=1, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 08:41:39.543 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 08:41:44.891 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check