13.80/6.48 MAYBE 13.80/6.48 13.80/6.48 Ultimate: Cannot open display: 13.80/6.48 This is Ultimate 0.1.24-8dc7c08-m 13.80/6.48 [2019-03-28 12:38:30,587 INFO L170 SettingsManager]: Resetting all preferences to default values... 13.80/6.48 [2019-03-28 12:38:30,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 13.80/6.48 [2019-03-28 12:38:30,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 13.80/6.48 [2019-03-28 12:38:30,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 13.80/6.48 [2019-03-28 12:38:30,604 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 13.80/6.48 [2019-03-28 12:38:30,606 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 13.80/6.48 [2019-03-28 12:38:30,607 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 13.80/6.48 [2019-03-28 12:38:30,608 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 13.80/6.48 [2019-03-28 12:38:30,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,609 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 13.80/6.48 [2019-03-28 12:38:30,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 13.80/6.48 [2019-03-28 12:38:30,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 13.80/6.48 [2019-03-28 12:38:30,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 13.80/6.48 [2019-03-28 12:38:30,613 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 13.80/6.48 [2019-03-28 12:38:30,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 13.80/6.48 [2019-03-28 12:38:30,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 13.80/6.48 [2019-03-28 12:38:30,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 13.80/6.48 [2019-03-28 12:38:30,618 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 13.80/6.48 [2019-03-28 12:38:30,619 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 13.80/6.48 [2019-03-28 12:38:30,621 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 13.80/6.48 [2019-03-28 12:38:30,623 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,623 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,623 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 13.80/6.48 [2019-03-28 12:38:30,624 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 13.80/6.48 [2019-03-28 12:38:30,624 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 13.80/6.48 [2019-03-28 12:38:30,625 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,625 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 13.80/6.48 [2019-03-28 12:38:30,626 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 13.80/6.48 [2019-03-28 12:38:30,627 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 13.80/6.48 [2019-03-28 12:38:30,627 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 13.80/6.48 [2019-03-28 12:38:30,628 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,628 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 13.80/6.48 [2019-03-28 12:38:30,629 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,629 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 13.80/6.48 [2019-03-28 12:38:30,629 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 13.80/6.48 [2019-03-28 12:38:30,630 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 13.80/6.48 [2019-03-28 12:38:30,631 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 13.80/6.48 [2019-03-28 12:38:30,631 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 13.80/6.48 [2019-03-28 12:38:30,646 INFO L110 SettingsManager]: Loading preferences was successful 13.80/6.48 [2019-03-28 12:38:30,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 13.80/6.48 [2019-03-28 12:38:30,647 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 13.80/6.48 [2019-03-28 12:38:30,647 INFO L133 SettingsManager]: * Rewrite not-equals=true 13.80/6.48 [2019-03-28 12:38:30,648 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 13.80/6.48 [2019-03-28 12:38:30,648 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 13.80/6.48 [2019-03-28 12:38:30,648 INFO L133 SettingsManager]: * Use SBE=true 13.80/6.48 [2019-03-28 12:38:30,648 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 13.80/6.48 [2019-03-28 12:38:30,648 INFO L133 SettingsManager]: * Use old map elimination=false 13.80/6.48 [2019-03-28 12:38:30,648 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 13.80/6.48 [2019-03-28 12:38:30,649 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 13.80/6.48 [2019-03-28 12:38:30,649 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 13.80/6.48 [2019-03-28 12:38:30,649 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 13.80/6.48 [2019-03-28 12:38:30,649 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 13.80/6.48 [2019-03-28 12:38:30,649 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 13.80/6.48 [2019-03-28 12:38:30,649 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 13.80/6.48 [2019-03-28 12:38:30,650 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 13.80/6.48 [2019-03-28 12:38:30,650 INFO L133 SettingsManager]: * Check division by zero=IGNORE 13.80/6.48 [2019-03-28 12:38:30,650 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 13.80/6.48 [2019-03-28 12:38:30,650 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 13.80/6.48 [2019-03-28 12:38:30,650 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 13.80/6.48 [2019-03-28 12:38:30,650 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 13.80/6.48 [2019-03-28 12:38:30,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 13.80/6.48 [2019-03-28 12:38:30,651 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 13.80/6.48 [2019-03-28 12:38:30,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 13.80/6.48 [2019-03-28 12:38:30,651 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 13.80/6.48 [2019-03-28 12:38:30,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 13.80/6.48 [2019-03-28 12:38:30,652 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 13.80/6.48 [2019-03-28 12:38:30,652 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 13.80/6.48 [2019-03-28 12:38:30,677 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 13.80/6.48 [2019-03-28 12:38:30,691 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 13.80/6.48 [2019-03-28 12:38:30,694 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 13.80/6.48 [2019-03-28 12:38:30,696 INFO L271 PluginConnector]: Initializing CDTParser... 13.80/6.48 [2019-03-28 12:38:30,696 INFO L276 PluginConnector]: CDTParser initialized 13.80/6.48 [2019-03-28 12:38:30,697 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 13.80/6.48 [2019-03-28 12:38:30,756 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/30351c7243f849b590fb1303351c00cb/FLAG962d137be 13.80/6.48 [2019-03-28 12:38:31,110 INFO L307 CDTParser]: Found 1 translation units. 13.80/6.48 [2019-03-28 12:38:31,111 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 13.80/6.48 [2019-03-28 12:38:31,111 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. 13.80/6.48 [2019-03-28 12:38:31,118 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/30351c7243f849b590fb1303351c00cb/FLAG962d137be 13.80/6.48 [2019-03-28 12:38:31,550 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/30351c7243f849b590fb1303351c00cb 13.80/6.48 [2019-03-28 12:38:31,562 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 13.80/6.48 [2019-03-28 12:38:31,563 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 13.80/6.48 [2019-03-28 12:38:31,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 13.80/6.48 [2019-03-28 12:38:31,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 13.80/6.48 [2019-03-28 12:38:31,568 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 13.80/6.48 [2019-03-28 12:38:31,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729c4632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31, skipping insertion in model container 13.80/6.48 [2019-03-28 12:38:31,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 13.80/6.48 [2019-03-28 12:38:31,599 INFO L176 MainTranslator]: Built tables and reachable declarations 13.80/6.48 [2019-03-28 12:38:31,763 INFO L206 PostProcessor]: Analyzing one entry point: main 13.80/6.48 [2019-03-28 12:38:31,775 INFO L191 MainTranslator]: Completed pre-run 13.80/6.48 [2019-03-28 12:38:31,848 INFO L206 PostProcessor]: Analyzing one entry point: main 13.80/6.48 [2019-03-28 12:38:31,864 INFO L195 MainTranslator]: Completed translation 13.80/6.48 [2019-03-28 12:38:31,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31 WrapperNode 13.80/6.48 [2019-03-28 12:38:31,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 13.80/6.48 [2019-03-28 12:38:31,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 13.80/6.48 [2019-03-28 12:38:31,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 13.80/6.48 [2019-03-28 12:38:31,866 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 13.80/6.48 [2019-03-28 12:38:31,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 13.80/6.48 [2019-03-28 12:38:31,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 13.80/6.48 [2019-03-28 12:38:31,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 13.80/6.48 [2019-03-28 12:38:31,908 INFO L276 PluginConnector]: Boogie Preprocessor initialized 13.80/6.48 [2019-03-28 12:38:31,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 [2019-03-28 12:38:31,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 13.80/6.48 [2019-03-28 12:38:31,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 13.80/6.48 [2019-03-28 12:38:31,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... 13.80/6.48 [2019-03-28 12:38:31,933 INFO L276 PluginConnector]: RCFGBuilder initialized 13.80/6.48 [2019-03-28 12:38:31,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (1/1) ... 13.80/6.48 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 13.80/6.48 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 13.80/6.48 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 13.80/6.48 [2019-03-28 12:38:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 13.80/6.48 [2019-03-28 12:38:31,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 13.80/6.48 [2019-03-28 12:38:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 13.80/6.48 [2019-03-28 12:38:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack 13.80/6.48 [2019-03-28 12:38:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc 13.80/6.48 [2019-03-28 12:38:32,193 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 13.80/6.48 [2019-03-28 12:38:32,193 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. 13.80/6.48 [2019-03-28 12:38:32,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:38:32 BoogieIcfgContainer 13.80/6.48 [2019-03-28 12:38:32,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 13.80/6.48 [2019-03-28 12:38:32,195 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 13.80/6.48 [2019-03-28 12:38:32,195 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 13.80/6.48 [2019-03-28 12:38:32,197 INFO L276 PluginConnector]: BlockEncodingV2 initialized 13.80/6.48 [2019-03-28 12:38:32,198 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:38:32" (1/1) ... 13.80/6.48 [2019-03-28 12:38:32,216 INFO L313 BlockEncoder]: Initial Icfg 18 locations, 23 edges 13.80/6.48 [2019-03-28 12:38:32,218 INFO L258 BlockEncoder]: Using Remove infeasible edges 13.80/6.48 [2019-03-28 12:38:32,218 INFO L263 BlockEncoder]: Using Maximize final states 13.80/6.48 [2019-03-28 12:38:32,219 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 13.80/6.48 [2019-03-28 12:38:32,219 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 13.80/6.48 [2019-03-28 12:38:32,221 INFO L296 BlockEncoder]: Using Remove sink states 13.80/6.48 [2019-03-28 12:38:32,222 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 13.80/6.48 [2019-03-28 12:38:32,222 INFO L179 BlockEncoder]: Using Rewrite not-equals 13.80/6.48 [2019-03-28 12:38:32,241 INFO L185 BlockEncoder]: Using Use SBE 13.80/6.48 [2019-03-28 12:38:32,262 INFO L200 BlockEncoder]: SBE split 6 edges 13.80/6.48 [2019-03-28 12:38:32,267 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 13.80/6.48 [2019-03-28 12:38:32,269 INFO L71 MaximizeFinalStates]: 0 new accepting states 13.80/6.48 [2019-03-28 12:38:32,283 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding 13.80/6.48 [2019-03-28 12:38:32,285 INFO L70 RemoveSinkStates]: Removed 5 edges and 3 locations by removing sink states 13.80/6.48 [2019-03-28 12:38:32,287 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 13.80/6.48 [2019-03-28 12:38:32,287 INFO L71 MaximizeFinalStates]: 0 new accepting states 13.80/6.48 [2019-03-28 12:38:32,287 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 13.80/6.48 [2019-03-28 12:38:32,288 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 13.80/6.48 [2019-03-28 12:38:32,288 INFO L313 BlockEncoder]: Encoded RCFG 12 locations, 20 edges 13.80/6.48 [2019-03-28 12:38:32,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:38:32 BasicIcfg 13.80/6.48 [2019-03-28 12:38:32,289 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 13.80/6.48 [2019-03-28 12:38:32,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 13.80/6.48 [2019-03-28 12:38:32,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... 13.80/6.48 [2019-03-28 12:38:32,296 INFO L276 PluginConnector]: TraceAbstraction initialized 13.80/6.48 [2019-03-28 12:38:32,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:38:31" (1/4) ... 13.80/6.48 [2019-03-28 12:38:32,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd3321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:38:32, skipping insertion in model container 13.80/6.48 [2019-03-28 12:38:32,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:38:31" (2/4) ... 13.80/6.48 [2019-03-28 12:38:32,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd3321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:38:32, skipping insertion in model container 13.80/6.48 [2019-03-28 12:38:32,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:38:32" (3/4) ... 13.80/6.48 [2019-03-28 12:38:32,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd3321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:38:32, skipping insertion in model container 13.80/6.48 [2019-03-28 12:38:32,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:38:32" (4/4) ... 13.80/6.48 [2019-03-28 12:38:32,300 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 13.80/6.48 [2019-03-28 12:38:32,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 13.80/6.48 [2019-03-28 12:38:32,317 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. 13.80/6.48 [2019-03-28 12:38:32,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. 13.80/6.48 [2019-03-28 12:38:32,363 INFO L133 ementStrategyFactory]: Using default assertion order modulation 13.80/6.48 [2019-03-28 12:38:32,364 INFO L382 AbstractCegarLoop]: Interprodecural is true 13.80/6.48 [2019-03-28 12:38:32,364 INFO L383 AbstractCegarLoop]: Hoare is true 13.80/6.48 [2019-03-28 12:38:32,364 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 13.80/6.48 [2019-03-28 12:38:32,364 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 13.80/6.48 [2019-03-28 12:38:32,364 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 13.80/6.48 [2019-03-28 12:38:32,365 INFO L387 AbstractCegarLoop]: Difference is false 13.80/6.48 [2019-03-28 12:38:32,365 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 13.80/6.48 [2019-03-28 12:38:32,365 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 13.80/6.48 [2019-03-28 12:38:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. 13.80/6.48 [2019-03-28 12:38:32,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 13.80/6.48 [2019-03-28 12:38:32,386 INFO L394 BasicCegarLoop]: Found error trace 13.80/6.48 [2019-03-28 12:38:32,387 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] 13.80/6.48 [2019-03-28 12:38:32,387 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== 13.80/6.48 [2019-03-28 12:38:32,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 13.80/6.48 [2019-03-28 12:38:32,393 INFO L82 PathProgramCache]: Analyzing trace with hash 520829245, now seen corresponding path program 1 times 13.80/6.48 [2019-03-28 12:38:32,395 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 13.80/6.48 [2019-03-28 12:38:32,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 13.80/6.48 [2019-03-28 12:38:32,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 13.80/6.48 [2019-03-28 12:38:32,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 13.80/6.48 [2019-03-28 12:38:32,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 13.80/6.48 [2019-03-28 12:38:32,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 13.80/6.48 [2019-03-28 12:38:32,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states 13.80/6.48 [2019-03-28 12:38:32,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. 13.80/6.48 [2019-03-28 12:38:32,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 13.80/6.48 [2019-03-28 12:38:32,619 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. 13.80/6.48 [2019-03-28 12:38:32,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 13.80/6.48 [2019-03-28 12:38:32,738 INFO L93 Difference]: Finished difference Result 12 states and 20 transitions. 13.80/6.48 [2019-03-28 12:38:32,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 13.80/6.48 [2019-03-28 12:38:32,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 13.80/6.48 [2019-03-28 12:38:32,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 13.80/6.48 [2019-03-28 12:38:32,753 INFO L225 Difference]: With dead ends: 12 13.80/6.48 [2019-03-28 12:38:32,753 INFO L226 Difference]: Without dead ends: 11 13.80/6.48 [2019-03-28 12:38:32,757 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 13.80/6.48 [2019-03-28 12:38:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. 13.80/6.48 [2019-03-28 12:38:32,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. 13.80/6.48 [2019-03-28 12:38:32,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. 13.80/6.48 [2019-03-28 12:38:32,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 18 transitions. 13.80/6.48 [2019-03-28 12:38:32,793 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 18 transitions. Word has length 7 13.80/6.48 [2019-03-28 12:38:32,793 INFO L84 Accepts]: Finished accepts. word is rejected. 13.80/6.48 [2019-03-28 12:38:32,793 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 18 transitions. 13.80/6.48 [2019-03-28 12:38:32,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. 13.80/6.48 [2019-03-28 12:38:32,793 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 18 transitions. 13.80/6.48 [2019-03-28 12:38:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 13.80/6.48 [2019-03-28 12:38:32,794 INFO L394 BasicCegarLoop]: Found error trace 13.80/6.48 [2019-03-28 12:38:32,794 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] 13.80/6.48 [2019-03-28 12:38:32,794 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== 13.80/6.48 [2019-03-28 12:38:32,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 13.80/6.48 [2019-03-28 12:38:32,795 INFO L82 PathProgramCache]: Analyzing trace with hash 520829247, now seen corresponding path program 1 times 13.80/6.48 [2019-03-28 12:38:32,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 13.80/6.48 [2019-03-28 12:38:32,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 13.80/6.48 [2019-03-28 12:38:32,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 13.80/6.48 [2019-03-28 12:38:32,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 13.80/6.48 [2019-03-28 12:38:32,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 13.80/6.48 [2019-03-28 12:38:32,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 13.80/6.48 [2019-03-28 12:38:32,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states 13.80/6.48 [2019-03-28 12:38:32,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. 13.80/6.48 [2019-03-28 12:38:32,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 13.80/6.48 [2019-03-28 12:38:32,914 INFO L87 Difference]: Start difference. First operand 11 states and 18 transitions. Second operand 6 states. 13.80/6.48 [2019-03-28 12:38:33,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 13.80/6.48 [2019-03-28 12:38:33,076 INFO L93 Difference]: Finished difference Result 22 states and 34 transitions. 13.80/6.48 [2019-03-28 12:38:33,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 13.80/6.48 [2019-03-28 12:38:33,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 13.80/6.48 [2019-03-28 12:38:33,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 13.80/6.48 [2019-03-28 12:38:33,096 INFO L225 Difference]: With dead ends: 22 13.80/6.48 [2019-03-28 12:38:33,096 INFO L226 Difference]: Without dead ends: 16 13.80/6.48 [2019-03-28 12:38:33,097 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 13.80/6.48 [2019-03-28 12:38:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. 13.80/6.48 [2019-03-28 12:38:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. 13.80/6.48 [2019-03-28 12:38:33,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. 13.80/6.48 [2019-03-28 12:38:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. 13.80/6.48 [2019-03-28 12:38:33,101 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 16 transitions. Word has length 7 13.80/6.48 [2019-03-28 12:38:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. 13.80/6.48 [2019-03-28 12:38:33,101 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 16 transitions. 13.80/6.48 [2019-03-28 12:38:33,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. 13.80/6.48 [2019-03-28 12:38:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. 13.80/6.48 [2019-03-28 12:38:33,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 13.80/6.48 [2019-03-28 12:38:33,102 INFO L394 BasicCegarLoop]: Found error trace 13.80/6.48 [2019-03-28 12:38:33,102 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] 13.80/6.48 [2019-03-28 12:38:33,103 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== 13.80/6.48 [2019-03-28 12:38:33,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 13.80/6.48 [2019-03-28 12:38:33,103 INFO L82 PathProgramCache]: Analyzing trace with hash 520829248, now seen corresponding path program 1 times 13.80/6.48 [2019-03-28 12:38:33,103 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 13.80/6.48 [2019-03-28 12:38:33,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 13.80/6.48 [2019-03-28 12:38:33,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 13.80/6.48 [2019-03-28 12:38:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 13.80/6.48 [2019-03-28 12:38:33,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 13.80/6.48 [2019-03-28 12:38:33,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 13.80/6.48 [2019-03-28 12:38:33,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states 13.80/6.48 [2019-03-28 12:38:33,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. 13.80/6.48 [2019-03-28 12:38:33,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 13.80/6.48 [2019-03-28 12:38:33,184 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 6 states. 13.80/6.48 [2019-03-28 12:38:33,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 13.80/6.48 [2019-03-28 12:38:33,290 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. 13.80/6.48 [2019-03-28 12:38:33,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 13.80/6.48 [2019-03-28 12:38:33,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 13.80/6.48 [2019-03-28 12:38:33,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 13.80/6.48 [2019-03-28 12:38:33,291 INFO L225 Difference]: With dead ends: 22 13.80/6.48 [2019-03-28 12:38:33,291 INFO L226 Difference]: Without dead ends: 21 13.80/6.48 [2019-03-28 12:38:33,292 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 13.80/6.48 [2019-03-28 12:38:33,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. 13.80/6.48 [2019-03-28 12:38:33,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. 13.80/6.48 [2019-03-28 12:38:33,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. 13.80/6.48 [2019-03-28 12:38:33,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. 13.80/6.48 [2019-03-28 12:38:33,297 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 7 13.80/6.48 [2019-03-28 12:38:33,297 INFO L84 Accepts]: Finished accepts. word is rejected. 13.80/6.48 [2019-03-28 12:38:33,297 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. 13.80/6.48 [2019-03-28 12:38:33,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. 13.80/6.48 [2019-03-28 12:38:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. 13.80/6.48 [2019-03-28 12:38:33,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 13.80/6.48 [2019-03-28 12:38:33,298 INFO L394 BasicCegarLoop]: Found error trace 13.80/6.48 [2019-03-28 12:38:33,298 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] 13.80/6.48 [2019-03-28 12:38:33,298 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== 13.80/6.48 [2019-03-28 12:38:33,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 13.80/6.48 [2019-03-28 12:38:33,299 INFO L82 PathProgramCache]: Analyzing trace with hash 542070231, now seen corresponding path program 1 times 13.80/6.48 [2019-03-28 12:38:33,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 13.80/6.48 [2019-03-28 12:38:33,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 13.80/6.48 [2019-03-28 12:38:33,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 13.80/6.48 [2019-03-28 12:38:33,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 13.80/6.48 [2019-03-28 12:38:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 13.80/6.48 [2019-03-28 12:38:33,349 INFO L469 BasicCegarLoop]: Counterexample might be feasible 13.80/6.48 [2019-03-28 12:38:33,372 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 13.80/6.48 [2019-03-28 12:38:33,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:38:33 BasicIcfg 13.80/6.48 [2019-03-28 12:38:33,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 13.80/6.48 [2019-03-28 12:38:33,375 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 13.80/6.48 [2019-03-28 12:38:33,376 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 13.80/6.48 [2019-03-28 12:38:33,379 INFO L276 PluginConnector]: BuchiAutomizer initialized 13.80/6.48 [2019-03-28 12:38:33,379 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 13.80/6.48 [2019-03-28 12:38:33,379 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 13.80/6.48 [2019-03-28 12:38:33,380 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 13.80/6.48 [2019-03-28 12:38:33,380 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 13.80/6.48 [2019-03-28 12:38:33,380 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 13.80/6.48 [2019-03-28 12:38:33,380 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 13.80/6.48 [2019-03-28 12:38:33,380 INFO L168 Benchmark]: Toolchain (without parser) took 1818.06 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 564.9 MB in the beginning and 529.3 MB in the end (delta: 35.7 MB). Peak memory consumption was 76.6 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,383 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 586.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.85 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 564.9 MB in the beginning and 656.7 MB in the end (delta: -91.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 690.5 MB. Free memory was 656.7 MB in the beginning and 653.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,385 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 ms. Allocated memory is still 690.5 MB. Free memory was 653.6 MB in the beginning and 652.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,386 INFO L168 Benchmark]: RCFGBuilder took 262.06 ms. Allocated memory is still 690.5 MB. Free memory was 652.2 MB in the beginning and 632.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,386 INFO L168 Benchmark]: BlockEncodingV2 took 93.96 ms. Allocated memory is still 690.5 MB. Free memory was 632.7 MB in the beginning and 626.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,387 INFO L168 Benchmark]: TraceAbstraction took 1084.98 ms. Allocated memory is still 690.5 MB. Free memory was 626.0 MB in the beginning and 530.6 MB in the end (delta: 95.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,387 INFO L168 Benchmark]: BuchiAutomizer took 4.58 ms. Allocated memory is still 690.5 MB. Free memory was 530.6 MB in the beginning and 529.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 13.80/6.48 [2019-03-28 12:38:33,392 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 13.80/6.48 --- Results --- 13.80/6.48 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 13.80/6.48 - StatisticsResult: Initial Icfg 13.80/6.48 18 locations, 23 edges 13.80/6.48 - StatisticsResult: Encoded RCFG 13.80/6.48 12 locations, 20 edges 13.80/6.48 * Results from de.uni_freiburg.informatik.ultimate.core: 13.80/6.48 - StatisticsResult: Toolchain Benchmarks 13.80/6.48 Benchmark results are: 13.80/6.48 * CDTParser took 0.19 ms. Allocated memory is still 649.6 MB. Free memory is still 586.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 13.80/6.48 * CACSL2BoogieTranslator took 300.85 ms. Allocated memory was 649.6 MB in the beginning and 690.5 MB in the end (delta: 40.9 MB). Free memory was 564.9 MB in the beginning and 656.7 MB in the end (delta: -91.7 MB). Peak memory consumption was 30.1 MB. Max. memory is 50.3 GB. 13.80/6.48 * Boogie Procedure Inliner took 41.60 ms. Allocated memory is still 690.5 MB. Free memory was 656.7 MB in the beginning and 653.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 13.80/6.48 * Boogie Preprocessor took 24.71 ms. Allocated memory is still 690.5 MB. Free memory was 653.6 MB in the beginning and 652.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 13.80/6.48 * RCFGBuilder took 262.06 ms. Allocated memory is still 690.5 MB. Free memory was 652.2 MB in the beginning and 632.7 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 50.3 GB. 13.80/6.48 * BlockEncodingV2 took 93.96 ms. Allocated memory is still 690.5 MB. Free memory was 632.7 MB in the beginning and 626.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 50.3 GB. 13.80/6.48 * TraceAbstraction took 1084.98 ms. Allocated memory is still 690.5 MB. Free memory was 626.0 MB in the beginning and 530.6 MB in the end (delta: 95.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 50.3 GB. 13.80/6.48 * BuchiAutomizer took 4.58 ms. Allocated memory is still 690.5 MB. Free memory was 530.6 MB in the beginning and 529.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 13.80/6.48 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 13.80/6.48 - CounterExampleResult [Line: 17]: pointer dereference may fail 13.80/6.48 pointer dereference may fail 13.80/6.48 We found a FailurePath: 13.80/6.48 [L25] int length = __VERIFIER_nondet_int(); 13.80/6.48 [L26] int n = __VERIFIER_nondet_int(); 13.80/6.48 [L27] int c = __VERIFIER_nondet_int(); 13.80/6.48 [L28] COND FALSE !(length < 1) 13.80/6.48 [L31] COND FALSE !(n < 1) 13.80/6.48 [L34] char* nondetArea = (char*) alloca(n * sizeof(char)); 13.80/6.48 [L12] const unsigned char *cp; 13.80/6.48 [L14] COND TRUE n != 0 13.80/6.48 [L15] cp = (unsigned char *)s + n 13.80/6.48 [L17] --cp 13.80/6.48 13.80/6.48 - StatisticsResult: Ultimate Automizer benchmark data 13.80/6.48 CFG has 1 procedures, 12 locations, 2 error locations. UNSAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 76 SDslu, 79 SDs, 0 SdLazy, 136 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, 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, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 426 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 13.80/6.48 RESULT: Ultimate proved your program to be incorrect! 13.80/6.48 !SESSION 2019-03-28 12:38:28.185 ----------------------------------------------- 13.80/6.48 eclipse.buildId=unknown 13.80/6.48 java.version=1.8.0_181 13.80/6.48 java.vendor=Oracle Corporation 13.80/6.48 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 13.80/6.48 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 13.80/6.48 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 13.80/6.48 13.80/6.48 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:38:33.627 13.80/6.48 !MESSAGE The workspace will exit with unsaved changes in this session. 13.80/6.48 Received shutdown request... 13.80/6.48 Ultimate: 13.80/6.48 GTK+ Version Check 13.80/6.48 EOF