11.51/5.55 MAYBE 11.51/5.55 11.51/5.55 Ultimate: Cannot open display: 11.51/5.55 This is Ultimate 0.1.24-8dc7c08-m 11.51/5.55 [2019-03-28 12:49:00,079 INFO L170 SettingsManager]: Resetting all preferences to default values... 11.51/5.55 [2019-03-28 12:49:00,081 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 11.51/5.55 [2019-03-28 12:49:00,092 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,092 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 11.51/5.55 [2019-03-28 12:49:00,093 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 11.51/5.55 [2019-03-28 12:49:00,094 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 11.51/5.55 [2019-03-28 12:49:00,096 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 11.51/5.55 [2019-03-28 12:49:00,097 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 11.51/5.55 [2019-03-28 12:49:00,098 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 11.51/5.55 [2019-03-28 12:49:00,099 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,100 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 11.51/5.55 [2019-03-28 12:49:00,100 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 11.51/5.55 [2019-03-28 12:49:00,101 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 11.51/5.55 [2019-03-28 12:49:00,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 11.51/5.55 [2019-03-28 12:49:00,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 11.51/5.55 [2019-03-28 12:49:00,104 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 11.51/5.55 [2019-03-28 12:49:00,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 11.51/5.55 [2019-03-28 12:49:00,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 11.51/5.55 [2019-03-28 12:49:00,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 11.51/5.55 [2019-03-28 12:49:00,110 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 11.51/5.55 [2019-03-28 12:49:00,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 11.51/5.55 [2019-03-28 12:49:00,113 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,113 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,114 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 11.51/5.55 [2019-03-28 12:49:00,114 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 11.51/5.55 [2019-03-28 12:49:00,115 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 11.51/5.55 [2019-03-28 12:49:00,116 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,116 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 11.51/5.55 [2019-03-28 12:49:00,116 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 11.51/5.55 [2019-03-28 12:49:00,117 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 11.51/5.55 [2019-03-28 12:49:00,118 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 11.51/5.55 [2019-03-28 12:49:00,119 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,119 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 11.51/5.55 [2019-03-28 12:49:00,120 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,121 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 11.51/5.55 [2019-03-28 12:49:00,121 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 11.51/5.55 [2019-03-28 12:49:00,122 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 11.51/5.55 [2019-03-28 12:49:00,123 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 11.51/5.55 [2019-03-28 12:49:00,123 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 11.51/5.55 [2019-03-28 12:49:00,138 INFO L110 SettingsManager]: Loading preferences was successful 11.51/5.55 [2019-03-28 12:49:00,138 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 11.51/5.55 [2019-03-28 12:49:00,139 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 11.51/5.55 [2019-03-28 12:49:00,139 INFO L133 SettingsManager]: * Rewrite not-equals=true 11.51/5.55 [2019-03-28 12:49:00,139 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 11.51/5.55 [2019-03-28 12:49:00,139 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 11.51/5.55 [2019-03-28 12:49:00,140 INFO L133 SettingsManager]: * Use SBE=true 11.51/5.55 [2019-03-28 12:49:00,140 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 11.51/5.55 [2019-03-28 12:49:00,140 INFO L133 SettingsManager]: * Use old map elimination=false 11.51/5.55 [2019-03-28 12:49:00,140 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 11.51/5.55 [2019-03-28 12:49:00,140 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 11.51/5.55 [2019-03-28 12:49:00,140 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 11.51/5.55 [2019-03-28 12:49:00,141 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 11.51/5.55 [2019-03-28 12:49:00,141 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 11.51/5.55 [2019-03-28 12:49:00,141 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 11.51/5.55 [2019-03-28 12:49:00,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 11.51/5.55 [2019-03-28 12:49:00,141 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 11.51/5.55 [2019-03-28 12:49:00,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE 11.51/5.55 [2019-03-28 12:49:00,142 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 11.51/5.55 [2019-03-28 12:49:00,142 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 11.51/5.55 [2019-03-28 12:49:00,142 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 11.51/5.55 [2019-03-28 12:49:00,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 11.51/5.55 [2019-03-28 12:49:00,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 11.51/5.55 [2019-03-28 12:49:00,143 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 11.51/5.55 [2019-03-28 12:49:00,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.51/5.55 [2019-03-28 12:49:00,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 11.51/5.55 [2019-03-28 12:49:00,143 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 11.51/5.55 [2019-03-28 12:49:00,143 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 11.51/5.55 [2019-03-28 12:49:00,143 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 11.51/5.55 [2019-03-28 12:49:00,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 11.51/5.55 [2019-03-28 12:49:00,181 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 11.51/5.55 [2019-03-28 12:49:00,185 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 11.51/5.55 [2019-03-28 12:49:00,186 INFO L271 PluginConnector]: Initializing CDTParser... 11.51/5.55 [2019-03-28 12:49:00,187 INFO L276 PluginConnector]: CDTParser initialized 11.51/5.55 [2019-03-28 12:49:00,187 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 11.51/5.55 [2019-03-28 12:49:00,248 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/130cf691f9f1478799d354303763a0bf/FLAGd7318c490 11.51/5.55 [2019-03-28 12:49:00,585 INFO L307 CDTParser]: Found 1 translation units. 11.51/5.55 [2019-03-28 12:49:00,586 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 11.51/5.55 [2019-03-28 12:49:00,592 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/130cf691f9f1478799d354303763a0bf/FLAGd7318c490 11.51/5.55 [2019-03-28 12:49:00,992 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/130cf691f9f1478799d354303763a0bf 11.51/5.55 [2019-03-28 12:49:01,003 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 11.51/5.55 [2019-03-28 12:49:01,005 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 11.51/5.55 [2019-03-28 12:49:01,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 11.51/5.55 [2019-03-28 12:49:01,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 11.51/5.55 [2019-03-28 12:49:01,010 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 11.51/5.55 [2019-03-28 12:49:01,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:49:00" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0454c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01, skipping insertion in model container 11.51/5.55 [2019-03-28 12:49:01,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:49:00" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 11.51/5.55 [2019-03-28 12:49:01,039 INFO L176 MainTranslator]: Built tables and reachable declarations 11.51/5.55 [2019-03-28 12:49:01,203 INFO L206 PostProcessor]: Analyzing one entry point: main 11.51/5.55 [2019-03-28 12:49:01,215 INFO L191 MainTranslator]: Completed pre-run 11.51/5.55 [2019-03-28 12:49:01,296 INFO L206 PostProcessor]: Analyzing one entry point: main 11.51/5.55 [2019-03-28 12:49:01,313 INFO L195 MainTranslator]: Completed translation 11.51/5.55 [2019-03-28 12:49:01,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01 WrapperNode 11.51/5.55 [2019-03-28 12:49:01,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 11.51/5.55 [2019-03-28 12:49:01,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 11.51/5.55 [2019-03-28 12:49:01,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 11.51/5.55 [2019-03-28 12:49:01,315 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 11.51/5.55 [2019-03-28 12:49:01,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 11.51/5.55 [2019-03-28 12:49:01,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 11.51/5.55 [2019-03-28 12:49:01,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 11.51/5.55 [2019-03-28 12:49:01,358 INFO L276 PluginConnector]: Boogie Preprocessor initialized 11.51/5.55 [2019-03-28 12:49:01,368 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 11.51/5.55 [2019-03-28 12:49:01,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 11.51/5.55 [2019-03-28 12:49:01,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... 11.51/5.55 [2019-03-28 12:49:01,383 INFO L276 PluginConnector]: RCFGBuilder initialized 11.51/5.55 [2019-03-28 12:49:01,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (1/1) ... 11.51/5.55 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 11.51/5.55 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 11.51/5.55 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.51/5.55 [2019-03-28 12:49:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 11.51/5.55 [2019-03-28 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 11.51/5.55 [2019-03-28 12:49:01,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 11.51/5.55 [2019-03-28 12:49:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 11.51/5.55 [2019-03-28 12:49:01,711 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 11.51/5.55 [2019-03-28 12:49:01,711 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. 11.51/5.55 [2019-03-28 12:49:01,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:01 BoogieIcfgContainer 11.51/5.55 [2019-03-28 12:49:01,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 11.51/5.55 [2019-03-28 12:49:01,714 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 11.51/5.55 [2019-03-28 12:49:01,714 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 11.51/5.55 [2019-03-28 12:49:01,716 INFO L276 PluginConnector]: BlockEncodingV2 initialized 11.51/5.55 [2019-03-28 12:49:01,716 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:01" (1/1) ... 11.51/5.55 [2019-03-28 12:49:01,734 INFO L313 BlockEncoder]: Initial Icfg 28 locations, 33 edges 11.51/5.55 [2019-03-28 12:49:01,735 INFO L258 BlockEncoder]: Using Remove infeasible edges 11.51/5.55 [2019-03-28 12:49:01,736 INFO L263 BlockEncoder]: Using Maximize final states 11.51/5.55 [2019-03-28 12:49:01,737 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 11.51/5.55 [2019-03-28 12:49:01,737 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 11.51/5.55 [2019-03-28 12:49:01,739 INFO L296 BlockEncoder]: Using Remove sink states 11.51/5.55 [2019-03-28 12:49:01,740 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 11.51/5.55 [2019-03-28 12:49:01,740 INFO L179 BlockEncoder]: Using Rewrite not-equals 11.51/5.55 [2019-03-28 12:49:01,762 INFO L185 BlockEncoder]: Using Use SBE 11.51/5.55 [2019-03-28 12:49:01,792 INFO L200 BlockEncoder]: SBE split 14 edges 11.51/5.55 [2019-03-28 12:49:01,797 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 11.51/5.55 [2019-03-28 12:49:01,799 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.51/5.55 [2019-03-28 12:49:01,817 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding 11.51/5.55 [2019-03-28 12:49:01,820 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states 11.51/5.55 [2019-03-28 12:49:01,822 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.51/5.55 [2019-03-28 12:49:01,822 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.51/5.55 [2019-03-28 12:49:01,823 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.51/5.55 [2019-03-28 12:49:01,824 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.51/5.55 [2019-03-28 12:49:01,824 INFO L313 BlockEncoder]: Encoded RCFG 22 locations, 40 edges 11.51/5.55 [2019-03-28 12:49:01,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:49:01 BasicIcfg 11.51/5.55 [2019-03-28 12:49:01,825 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 11.51/5.55 [2019-03-28 12:49:01,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 11.51/5.55 [2019-03-28 12:49:01,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... 11.51/5.55 [2019-03-28 12:49:01,829 INFO L276 PluginConnector]: TraceAbstraction initialized 11.51/5.55 [2019-03-28 12:49:01,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:49:00" (1/4) ... 11.51/5.55 [2019-03-28 12:49:01,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453c9b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:49:01, skipping insertion in model container 11.51/5.55 [2019-03-28 12:49:01,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:01" (2/4) ... 11.51/5.55 [2019-03-28 12:49:01,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453c9b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:49:01, skipping insertion in model container 11.51/5.55 [2019-03-28 12:49:01,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:01" (3/4) ... 11.51/5.55 [2019-03-28 12:49:01,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453c9b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:49:01, skipping insertion in model container 11.51/5.55 [2019-03-28 12:49:01,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:49:01" (4/4) ... 11.51/5.55 [2019-03-28 12:49:01,833 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.51/5.55 [2019-03-28 12:49:01,843 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 11.51/5.55 [2019-03-28 12:49:01,851 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. 11.51/5.55 [2019-03-28 12:49:01,868 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. 11.51/5.55 [2019-03-28 12:49:01,897 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.51/5.55 [2019-03-28 12:49:01,898 INFO L382 AbstractCegarLoop]: Interprodecural is true 11.51/5.55 [2019-03-28 12:49:01,898 INFO L383 AbstractCegarLoop]: Hoare is true 11.51/5.55 [2019-03-28 12:49:01,898 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 11.51/5.55 [2019-03-28 12:49:01,898 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 11.51/5.55 [2019-03-28 12:49:01,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.51/5.55 [2019-03-28 12:49:01,899 INFO L387 AbstractCegarLoop]: Difference is false 11.51/5.55 [2019-03-28 12:49:01,899 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 11.51/5.55 [2019-03-28 12:49:01,899 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 11.51/5.55 [2019-03-28 12:49:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. 11.51/5.55 [2019-03-28 12:49:01,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 11.51/5.55 [2019-03-28 12:49:01,920 INFO L394 BasicCegarLoop]: Found error trace 11.51/5.55 [2019-03-28 12:49:01,921 INFO L402 BasicCegarLoop]: trace histogram [1, 1] 11.51/5.55 [2019-03-28 12:49:01,921 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== 11.51/5.55 [2019-03-28 12:49:01,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.51/5.55 [2019-03-28 12:49:01,926 INFO L82 PathProgramCache]: Analyzing trace with hash 5347, now seen corresponding path program 1 times 11.51/5.55 [2019-03-28 12:49:01,928 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.51/5.55 [2019-03-28 12:49:01,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.51/5.55 [2019-03-28 12:49:01,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.51/5.55 [2019-03-28 12:49:01,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.51/5.55 [2019-03-28 12:49:01,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.51/5.55 [2019-03-28 12:49:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.51/5.55 [2019-03-28 12:49:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.51/5.55 [2019-03-28 12:49:02,051 INFO L469 BasicCegarLoop]: Counterexample might be feasible 11.51/5.55 [2019-03-28 12:49:02,072 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 11.51/5.55 [2019-03-28 12:49:02,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:49:02 BasicIcfg 11.51/5.55 [2019-03-28 12:49:02,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 11.51/5.55 [2019-03-28 12:49:02,076 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 11.51/5.55 [2019-03-28 12:49:02,076 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 11.51/5.55 [2019-03-28 12:49:02,079 INFO L276 PluginConnector]: BuchiAutomizer initialized 11.51/5.55 [2019-03-28 12:49:02,080 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.51/5.55 [2019-03-28 12:49:02,080 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.51/5.55 [2019-03-28 12:49:02,080 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.51/5.55 [2019-03-28 12:49:02,080 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.51/5.55 [2019-03-28 12:49:02,080 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.51/5.55 [2019-03-28 12:49:02,080 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 11.51/5.55 [2019-03-28 12:49:02,081 INFO L168 Benchmark]: Toolchain (without parser) took 1077.03 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 558.4 MB in the beginning and 597.0 MB in the end (delta: -38.6 MB). There was no memory consumed. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,083 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.11 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 558.4 MB in the beginning and 650.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 684.2 MB. Free memory was 650.8 MB in the beginning and 646.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,085 INFO L168 Benchmark]: Boogie Preprocessor took 24.33 ms. Allocated memory is still 684.2 MB. Free memory was 646.4 MB in the beginning and 645.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,086 INFO L168 Benchmark]: RCFGBuilder took 330.86 ms. Allocated memory is still 684.2 MB. Free memory was 645.0 MB in the beginning and 624.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,086 INFO L168 Benchmark]: BlockEncodingV2 took 111.35 ms. Allocated memory is still 684.2 MB. Free memory was 624.0 MB in the beginning and 615.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,087 INFO L168 Benchmark]: TraceAbstraction took 249.46 ms. Allocated memory is still 684.2 MB. Free memory was 615.9 MB in the beginning and 597.0 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,088 INFO L168 Benchmark]: BuchiAutomizer took 4.70 ms. Allocated memory is still 684.2 MB. Free memory is still 597.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.51/5.55 [2019-03-28 12:49:02,092 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 11.51/5.55 --- Results --- 11.51/5.55 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 11.51/5.55 - StatisticsResult: Initial Icfg 11.51/5.55 28 locations, 33 edges 11.51/5.55 - StatisticsResult: Encoded RCFG 11.51/5.55 22 locations, 40 edges 11.51/5.55 * Results from de.uni_freiburg.informatik.ultimate.core: 11.51/5.55 - StatisticsResult: Toolchain Benchmarks 11.51/5.55 Benchmark results are: 11.51/5.55 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.51/5.55 * CACSL2BoogieTranslator took 308.11 ms. Allocated memory was 649.6 MB in the beginning and 684.2 MB in the end (delta: 34.6 MB). Free memory was 558.4 MB in the beginning and 650.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 29.6 MB. Max. memory is 50.3 GB. 11.51/5.55 * Boogie Procedure Inliner took 42.99 ms. Allocated memory is still 684.2 MB. Free memory was 650.8 MB in the beginning and 646.4 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 50.3 GB. 11.51/5.55 * Boogie Preprocessor took 24.33 ms. Allocated memory is still 684.2 MB. Free memory was 646.4 MB in the beginning and 645.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.51/5.55 * RCFGBuilder took 330.86 ms. Allocated memory is still 684.2 MB. Free memory was 645.0 MB in the beginning and 624.0 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 50.3 GB. 11.51/5.55 * BlockEncodingV2 took 111.35 ms. Allocated memory is still 684.2 MB. Free memory was 624.0 MB in the beginning and 615.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 11.51/5.55 * TraceAbstraction took 249.46 ms. Allocated memory is still 684.2 MB. Free memory was 615.9 MB in the beginning and 597.0 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 50.3 GB. 11.51/5.55 * BuchiAutomizer took 4.70 ms. Allocated memory is still 684.2 MB. Free memory is still 597.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.51/5.55 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 11.51/5.55 - CounterExampleResult [Line: 7]: pointer dereference may fail 11.51/5.55 pointer dereference may fail 11.51/5.55 We found a FailurePath: 11.51/5.55 [L24] char *s1; 11.51/5.55 [L25] char *s2; 11.51/5.55 [L26] int n = __VERIFIER_nondet_int(); 11.51/5.55 [L5] char *s = s1; 11.51/5.55 [L7] \read(*s) 11.51/5.55 11.51/5.55 - StatisticsResult: Ultimate Automizer benchmark data 11.51/5.55 CFG has 1 procedures, 22 locations, 10 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available 11.51/5.55 RESULT: Ultimate proved your program to be incorrect! 11.51/5.55 !SESSION 2019-03-28 12:48:57.715 ----------------------------------------------- 11.51/5.55 eclipse.buildId=unknown 11.51/5.55 java.version=1.8.0_181 11.51/5.55 java.vendor=Oracle Corporation 11.51/5.55 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 11.51/5.55 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.51/5.55 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 11.51/5.55 11.51/5.55 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:49:02.323 11.51/5.55 !MESSAGE The workspace will exit with unsaved changes in this session. 11.51/5.55 Received shutdown request... 11.51/5.55 Ultimate: 11.51/5.55 GTK+ Version Check 11.51/5.55 EOF