16.50/7.19 MAYBE 16.50/7.19 16.50/7.19 Ultimate: Cannot open display: 16.50/7.19 This is Ultimate 0.1.24-8dc7c08-m 16.50/7.19 [2019-03-28 12:47:14,816 INFO L170 SettingsManager]: Resetting all preferences to default values... 16.50/7.19 [2019-03-28 12:47:14,819 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 16.50/7.19 [2019-03-28 12:47:14,830 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,831 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 16.50/7.19 [2019-03-28 12:47:14,832 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 16.50/7.19 [2019-03-28 12:47:14,833 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 16.50/7.19 [2019-03-28 12:47:14,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 16.50/7.19 [2019-03-28 12:47:14,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 16.50/7.19 [2019-03-28 12:47:14,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 16.50/7.19 [2019-03-28 12:47:14,837 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 16.50/7.19 [2019-03-28 12:47:14,838 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 16.50/7.19 [2019-03-28 12:47:14,839 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 16.50/7.19 [2019-03-28 12:47:14,840 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 16.50/7.19 [2019-03-28 12:47:14,841 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 16.50/7.19 [2019-03-28 12:47:14,842 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 16.50/7.19 [2019-03-28 12:47:14,844 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 16.50/7.19 [2019-03-28 12:47:14,846 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 16.50/7.19 [2019-03-28 12:47:14,847 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 16.50/7.19 [2019-03-28 12:47:14,849 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 16.50/7.19 [2019-03-28 12:47:14,850 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 16.50/7.19 [2019-03-28 12:47:14,852 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,852 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,852 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 16.50/7.19 [2019-03-28 12:47:14,853 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 16.50/7.19 [2019-03-28 12:47:14,853 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 16.50/7.19 [2019-03-28 12:47:14,854 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,854 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 16.50/7.19 [2019-03-28 12:47:14,855 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 16.50/7.19 [2019-03-28 12:47:14,856 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 16.50/7.19 [2019-03-28 12:47:14,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 16.50/7.19 [2019-03-28 12:47:14,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 16.50/7.19 [2019-03-28 12:47:14,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 16.50/7.19 [2019-03-28 12:47:14,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 16.50/7.19 [2019-03-28 12:47:14,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 16.50/7.19 [2019-03-28 12:47:14,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 16.50/7.19 [2019-03-28 12:47:14,861 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 16.50/7.19 [2019-03-28 12:47:14,875 INFO L110 SettingsManager]: Loading preferences was successful 16.50/7.19 [2019-03-28 12:47:14,876 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 16.50/7.19 [2019-03-28 12:47:14,877 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 16.50/7.19 [2019-03-28 12:47:14,877 INFO L133 SettingsManager]: * Rewrite not-equals=true 16.50/7.19 [2019-03-28 12:47:14,877 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 16.50/7.19 [2019-03-28 12:47:14,877 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 16.50/7.19 [2019-03-28 12:47:14,877 INFO L133 SettingsManager]: * Use SBE=true 16.50/7.19 [2019-03-28 12:47:14,878 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 16.50/7.19 [2019-03-28 12:47:14,878 INFO L133 SettingsManager]: * Use old map elimination=false 16.50/7.19 [2019-03-28 12:47:14,878 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 16.50/7.19 [2019-03-28 12:47:14,878 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 16.50/7.19 [2019-03-28 12:47:14,878 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 16.50/7.19 [2019-03-28 12:47:14,879 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 16.50/7.19 [2019-03-28 12:47:14,879 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 16.50/7.19 [2019-03-28 12:47:14,879 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 16.50/7.19 [2019-03-28 12:47:14,879 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 16.50/7.19 [2019-03-28 12:47:14,879 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 16.50/7.19 [2019-03-28 12:47:14,880 INFO L133 SettingsManager]: * Check division by zero=IGNORE 16.50/7.19 [2019-03-28 12:47:14,880 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 16.50/7.19 [2019-03-28 12:47:14,880 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 16.50/7.19 [2019-03-28 12:47:14,880 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 16.50/7.19 [2019-03-28 12:47:14,880 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 16.50/7.19 [2019-03-28 12:47:14,881 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 16.50/7.19 [2019-03-28 12:47:14,881 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 16.50/7.19 [2019-03-28 12:47:14,881 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.50/7.19 [2019-03-28 12:47:14,881 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 16.50/7.19 [2019-03-28 12:47:14,881 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 16.50/7.19 [2019-03-28 12:47:14,881 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 16.50/7.19 [2019-03-28 12:47:14,882 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 16.50/7.19 [2019-03-28 12:47:14,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 16.50/7.19 [2019-03-28 12:47:14,920 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 16.50/7.19 [2019-03-28 12:47:14,924 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 16.50/7.19 [2019-03-28 12:47:14,925 INFO L271 PluginConnector]: Initializing CDTParser... 16.50/7.19 [2019-03-28 12:47:14,926 INFO L276 PluginConnector]: CDTParser initialized 16.50/7.19 [2019-03-28 12:47:14,927 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 16.50/7.19 [2019-03-28 12:47:14,982 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/3af3b984b7544beab48b152a7bc52468/FLAG566d691e2 16.50/7.19 [2019-03-28 12:47:15,342 INFO L307 CDTParser]: Found 1 translation units. 16.50/7.19 [2019-03-28 12:47:15,343 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 16.50/7.19 [2019-03-28 12:47:15,343 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. 16.50/7.19 [2019-03-28 12:47:15,350 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/3af3b984b7544beab48b152a7bc52468/FLAG566d691e2 16.50/7.19 [2019-03-28 12:47:15,730 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/3af3b984b7544beab48b152a7bc52468 16.50/7.19 [2019-03-28 12:47:15,741 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 16.50/7.19 [2019-03-28 12:47:15,743 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 16.50/7.19 [2019-03-28 12:47:15,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 16.50/7.19 [2019-03-28 12:47:15,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 16.50/7.19 [2019-03-28 12:47:15,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 16.50/7.19 [2019-03-28 12:47:15,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:15" (1/1) ... 16.50/7.19 [2019-03-28 12:47:15,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c311f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:15, skipping insertion in model container 16.50/7.19 [2019-03-28 12:47:15,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:15" (1/1) ... 16.50/7.19 [2019-03-28 12:47:15,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 16.50/7.19 [2019-03-28 12:47:15,778 INFO L176 MainTranslator]: Built tables and reachable declarations 16.50/7.19 [2019-03-28 12:47:15,945 INFO L206 PostProcessor]: Analyzing one entry point: main 16.50/7.19 [2019-03-28 12:47:15,958 INFO L191 MainTranslator]: Completed pre-run 16.50/7.19 [2019-03-28 12:47:16,042 INFO L206 PostProcessor]: Analyzing one entry point: main 16.50/7.19 [2019-03-28 12:47:16,059 INFO L195 MainTranslator]: Completed translation 16.50/7.19 [2019-03-28 12:47:16,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16 WrapperNode 16.50/7.19 [2019-03-28 12:47:16,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 16.50/7.19 [2019-03-28 12:47:16,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 16.50/7.19 [2019-03-28 12:47:16,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 16.50/7.19 [2019-03-28 12:47:16,061 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 16.50/7.19 [2019-03-28 12:47:16,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 16.50/7.19 [2019-03-28 12:47:16,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 16.50/7.19 [2019-03-28 12:47:16,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 16.50/7.19 [2019-03-28 12:47:16,107 INFO L276 PluginConnector]: Boogie Preprocessor initialized 16.50/7.19 [2019-03-28 12:47:16,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 16.50/7.19 [2019-03-28 12:47:16,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 16.50/7.19 [2019-03-28 12:47:16,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... 16.50/7.19 [2019-03-28 12:47:16,139 INFO L276 PluginConnector]: RCFGBuilder initialized 16.50/7.19 [2019-03-28 12:47:16,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (1/1) ... 16.50/7.19 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.50/7.19 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 16.50/7.19 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 16.50/7.19 [2019-03-28 12:47:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 16.50/7.19 [2019-03-28 12:47:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap 16.50/7.19 [2019-03-28 12:47:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 16.50/7.19 [2019-03-28 12:47:16,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 16.50/7.19 [2019-03-28 12:47:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 16.50/7.19 [2019-03-28 12:47:16,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc 16.50/7.19 [2019-03-28 12:47:16,557 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 16.50/7.19 [2019-03-28 12:47:16,557 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. 16.50/7.19 [2019-03-28 12:47:16,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:16 BoogieIcfgContainer 16.50/7.19 [2019-03-28 12:47:16,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 16.50/7.19 [2019-03-28 12:47:16,559 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 16.50/7.19 [2019-03-28 12:47:16,560 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 16.50/7.19 [2019-03-28 12:47:16,562 INFO L276 PluginConnector]: BlockEncodingV2 initialized 16.50/7.19 [2019-03-28 12:47:16,562 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:16" (1/1) ... 16.50/7.19 [2019-03-28 12:47:16,582 INFO L313 BlockEncoder]: Initial Icfg 57 locations, 67 edges 16.50/7.19 [2019-03-28 12:47:16,583 INFO L258 BlockEncoder]: Using Remove infeasible edges 16.50/7.19 [2019-03-28 12:47:16,584 INFO L263 BlockEncoder]: Using Maximize final states 16.50/7.19 [2019-03-28 12:47:16,585 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 16.50/7.19 [2019-03-28 12:47:16,585 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 16.50/7.19 [2019-03-28 12:47:16,587 INFO L296 BlockEncoder]: Using Remove sink states 16.50/7.19 [2019-03-28 12:47:16,588 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 16.50/7.19 [2019-03-28 12:47:16,588 INFO L179 BlockEncoder]: Using Rewrite not-equals 16.50/7.19 [2019-03-28 12:47:16,615 INFO L185 BlockEncoder]: Using Use SBE 16.50/7.19 [2019-03-28 12:47:16,649 INFO L200 BlockEncoder]: SBE split 25 edges 16.50/7.19 [2019-03-28 12:47:16,654 INFO L70 emoveInfeasibleEdges]: Removed 4 edges and 0 locations because of local infeasibility 16.50/7.19 [2019-03-28 12:47:16,656 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.50/7.19 [2019-03-28 12:47:16,702 INFO L100 BaseMinimizeStates]: Removed 20 edges and 10 locations by large block encoding 16.50/7.19 [2019-03-28 12:47:16,705 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 16.50/7.19 [2019-03-28 12:47:16,707 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 16.50/7.19 [2019-03-28 12:47:16,707 INFO L71 MaximizeFinalStates]: 0 new accepting states 16.50/7.19 [2019-03-28 12:47:16,707 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 16.50/7.19 [2019-03-28 12:47:16,708 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 16.50/7.19 [2019-03-28 12:47:16,708 INFO L313 BlockEncoder]: Encoded RCFG 46 locations, 79 edges 16.50/7.19 [2019-03-28 12:47:16,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:16 BasicIcfg 16.50/7.19 [2019-03-28 12:47:16,709 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 16.50/7.19 [2019-03-28 12:47:16,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 16.50/7.19 [2019-03-28 12:47:16,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... 16.50/7.19 [2019-03-28 12:47:16,713 INFO L276 PluginConnector]: TraceAbstraction initialized 16.50/7.19 [2019-03-28 12:47:16,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:47:15" (1/4) ... 16.50/7.19 [2019-03-28 12:47:16,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8555ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:16, skipping insertion in model container 16.50/7.19 [2019-03-28 12:47:16,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:16" (2/4) ... 16.50/7.19 [2019-03-28 12:47:16,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8555ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:16, skipping insertion in model container 16.50/7.19 [2019-03-28 12:47:16,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:16" (3/4) ... 16.50/7.19 [2019-03-28 12:47:16,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8555ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:16, skipping insertion in model container 16.50/7.19 [2019-03-28 12:47:16,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:16" (4/4) ... 16.50/7.19 [2019-03-28 12:47:16,718 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 16.50/7.19 [2019-03-28 12:47:16,728 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 16.50/7.19 [2019-03-28 12:47:16,736 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. 16.50/7.19 [2019-03-28 12:47:16,754 INFO L257 AbstractCegarLoop]: Starting to check reachability of 22 error locations. 16.50/7.19 [2019-03-28 12:47:16,783 INFO L133 ementStrategyFactory]: Using default assertion order modulation 16.50/7.20 [2019-03-28 12:47:16,784 INFO L382 AbstractCegarLoop]: Interprodecural is true 16.50/7.20 [2019-03-28 12:47:16,784 INFO L383 AbstractCegarLoop]: Hoare is true 16.50/7.20 [2019-03-28 12:47:16,784 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 16.50/7.20 [2019-03-28 12:47:16,785 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 16.50/7.20 [2019-03-28 12:47:16,785 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 16.50/7.20 [2019-03-28 12:47:16,785 INFO L387 AbstractCegarLoop]: Difference is false 16.50/7.20 [2019-03-28 12:47:16,785 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 16.50/7.20 [2019-03-28 12:47:16,785 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 16.50/7.20 [2019-03-28 12:47:16,801 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. 16.50/7.20 [2019-03-28 12:47:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 16.50/7.20 [2019-03-28 12:47:16,808 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:16,808 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:16,809 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:16,814 INFO L82 PathProgramCache]: Analyzing trace with hash 5480954, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:16,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:16,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:16,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:16,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:16,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:17,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:17,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 16.50/7.20 [2019-03-28 12:47:17,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states 16.50/7.20 [2019-03-28 12:47:17,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.50/7.20 [2019-03-28 12:47:17,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,036 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. 16.50/7.20 [2019-03-28 12:47:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:17,196 INFO L93 Difference]: Finished difference Result 46 states and 79 transitions. 16.50/7.20 [2019-03-28 12:47:17,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:17,211 INFO L225 Difference]: With dead ends: 46 16.50/7.20 [2019-03-28 12:47:17,211 INFO L226 Difference]: Without dead ends: 39 16.50/7.20 [2019-03-28 12:47:17,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. 16.50/7.20 [2019-03-28 12:47:17,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 65 transitions. 16.50/7.20 [2019-03-28 12:47:17,255 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 65 transitions. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:17,256 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 65 transitions. 16.50/7.20 [2019-03-28 12:47:17,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 65 transitions. 16.50/7.20 [2019-03-28 12:47:17,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 16.50/7.20 [2019-03-28 12:47:17,257 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:17,257 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:17,258 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:17,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:17,258 INFO L82 PathProgramCache]: Analyzing trace with hash 5480956, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:17,258 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:17,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:17,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:17,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:17,321 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 16.50/7.20 [2019-03-28 12:47:17,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states 16.50/7.20 [2019-03-28 12:47:17,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 16.50/7.20 [2019-03-28 12:47:17,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 16.50/7.20 [2019-03-28 12:47:17,324 INFO L87 Difference]: Start difference. First operand 39 states and 65 transitions. Second operand 4 states. 16.50/7.20 [2019-03-28 12:47:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:17,492 INFO L93 Difference]: Finished difference Result 44 states and 65 transitions. 16.50/7.20 [2019-03-28 12:47:17,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:17,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:17,494 INFO L225 Difference]: With dead ends: 44 16.50/7.20 [2019-03-28 12:47:17,494 INFO L226 Difference]: Without dead ends: 39 16.50/7.20 [2019-03-28 12:47:17,495 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 16.50/7.20 [2019-03-28 12:47:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. 16.50/7.20 [2019-03-28 12:47:17,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 60 transitions. 16.50/7.20 [2019-03-28 12:47:17,501 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 60 transitions. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:17,502 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 60 transitions. 16.50/7.20 [2019-03-28 12:47:17,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. 16.50/7.20 [2019-03-28 12:47:17,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 16.50/7.20 [2019-03-28 12:47:17,502 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:17,503 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:17,503 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:17,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:17,503 INFO L82 PathProgramCache]: Analyzing trace with hash 5480957, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:17,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:17,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:17,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:17,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:17,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 16.50/7.20 [2019-03-28 12:47:17,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states 16.50/7.20 [2019-03-28 12:47:17,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.50/7.20 [2019-03-28 12:47:17,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,536 INFO L87 Difference]: Start difference. First operand 39 states and 60 transitions. Second operand 3 states. 16.50/7.20 [2019-03-28 12:47:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:17,667 INFO L93 Difference]: Finished difference Result 45 states and 69 transitions. 16.50/7.20 [2019-03-28 12:47:17,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:17,670 INFO L225 Difference]: With dead ends: 45 16.50/7.20 [2019-03-28 12:47:17,670 INFO L226 Difference]: Without dead ends: 44 16.50/7.20 [2019-03-28 12:47:17,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. 16.50/7.20 [2019-03-28 12:47:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. 16.50/7.20 [2019-03-28 12:47:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. 16.50/7.20 [2019-03-28 12:47:17,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 63 transitions. 16.50/7.20 [2019-03-28 12:47:17,683 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 63 transitions. Word has length 4 16.50/7.20 [2019-03-28 12:47:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:17,683 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 63 transitions. 16.50/7.20 [2019-03-28 12:47:17,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,683 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. 16.50/7.20 [2019-03-28 12:47:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 16.50/7.20 [2019-03-28 12:47:17,684 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:17,684 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:17,684 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:17,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:17,685 INFO L82 PathProgramCache]: Analyzing trace with hash 169907159, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:17,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:17,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:17,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:17,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 16.50/7.20 [2019-03-28 12:47:17,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states 16.50/7.20 [2019-03-28 12:47:17,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. 16.50/7.20 [2019-03-28 12:47:17,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,717 INFO L87 Difference]: Start difference. First operand 41 states and 63 transitions. Second operand 3 states. 16.50/7.20 [2019-03-28 12:47:17,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:17,806 INFO L93 Difference]: Finished difference Result 41 states and 63 transitions. 16.50/7.20 [2019-03-28 12:47:17,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 16.50/7.20 [2019-03-28 12:47:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:17,807 INFO L225 Difference]: With dead ends: 41 16.50/7.20 [2019-03-28 12:47:17,807 INFO L226 Difference]: Without dead ends: 39 16.50/7.20 [2019-03-28 12:47:17,808 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 16.50/7.20 [2019-03-28 12:47:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. 16.50/7.20 [2019-03-28 12:47:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 59 transitions. 16.50/7.20 [2019-03-28 12:47:17,814 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 59 transitions. Word has length 5 16.50/7.20 [2019-03-28 12:47:17,814 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:17,815 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 59 transitions. 16.50/7.20 [2019-03-28 12:47:17,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. 16.50/7.20 [2019-03-28 12:47:17,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 16.50/7.20 [2019-03-28 12:47:17,815 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:17,816 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:17,816 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:17,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:17,817 INFO L82 PathProgramCache]: Analyzing trace with hash 169907161, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:17,817 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:17,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:17,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:17,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:17,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 16.50/7.20 [2019-03-28 12:47:17,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states 16.50/7.20 [2019-03-28 12:47:17,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 16.50/7.20 [2019-03-28 12:47:17,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 16.50/7.20 [2019-03-28 12:47:17,884 INFO L87 Difference]: Start difference. First operand 39 states and 59 transitions. Second operand 4 states. 16.50/7.20 [2019-03-28 12:47:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:17,989 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions. 16.50/7.20 [2019-03-28 12:47:17,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:17,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 16.50/7.20 [2019-03-28 12:47:17,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:17,991 INFO L225 Difference]: With dead ends: 41 16.50/7.20 [2019-03-28 12:47:17,991 INFO L226 Difference]: Without dead ends: 39 16.50/7.20 [2019-03-28 12:47:17,992 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 16.50/7.20 [2019-03-28 12:47:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. 16.50/7.20 [2019-03-28 12:47:17,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. 16.50/7.20 [2019-03-28 12:47:17,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 57 transitions. 16.50/7.20 [2019-03-28 12:47:17,999 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 57 transitions. Word has length 5 16.50/7.20 [2019-03-28 12:47:17,999 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:17,999 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 57 transitions. 16.50/7.20 [2019-03-28 12:47:18,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:18,000 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. 16.50/7.20 [2019-03-28 12:47:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 16.50/7.20 [2019-03-28 12:47:18,000 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:18,000 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:18,001 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:18,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:18,001 INFO L82 PathProgramCache]: Analyzing trace with hash 169907162, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:18,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:18,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:18,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:18,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:18,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 16.50/7.20 [2019-03-28 12:47:18,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states 16.50/7.20 [2019-03-28 12:47:18,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 16.50/7.20 [2019-03-28 12:47:18,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 16.50/7.20 [2019-03-28 12:47:18,040 INFO L87 Difference]: Start difference. First operand 39 states and 57 transitions. Second operand 4 states. 16.50/7.20 [2019-03-28 12:47:18,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:18,124 INFO L93 Difference]: Finished difference Result 39 states and 57 transitions. 16.50/7.20 [2019-03-28 12:47:18,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 16.50/7.20 [2019-03-28 12:47:18,125 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 16.50/7.20 [2019-03-28 12:47:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:18,125 INFO L225 Difference]: With dead ends: 39 16.50/7.20 [2019-03-28 12:47:18,125 INFO L226 Difference]: Without dead ends: 27 16.50/7.20 [2019-03-28 12:47:18,127 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 16.50/7.20 [2019-03-28 12:47:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. 16.50/7.20 [2019-03-28 12:47:18,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. 16.50/7.20 [2019-03-28 12:47:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. 16.50/7.20 [2019-03-28 12:47:18,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 40 transitions. 16.50/7.20 [2019-03-28 12:47:18,131 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 40 transitions. Word has length 5 16.50/7.20 [2019-03-28 12:47:18,131 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:18,131 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 40 transitions. 16.50/7.20 [2019-03-28 12:47:18,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 40 transitions. 16.50/7.20 [2019-03-28 12:47:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 16.50/7.20 [2019-03-28 12:47:18,132 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:18,132 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:18,132 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:18,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:18,132 INFO L82 PathProgramCache]: Analyzing trace with hash 976221499, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:18,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:18,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:18,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:18,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:18,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 16.50/7.20 [2019-03-28 12:47:18,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states 16.50/7.20 [2019-03-28 12:47:18,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. 16.50/7.20 [2019-03-28 12:47:18,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 16.50/7.20 [2019-03-28 12:47:18,166 INFO L87 Difference]: Start difference. First operand 25 states and 40 transitions. Second operand 4 states. 16.50/7.20 [2019-03-28 12:47:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:18,244 INFO L93 Difference]: Finished difference Result 49 states and 76 transitions. 16.50/7.20 [2019-03-28 12:47:18,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:18,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 16.50/7.20 [2019-03-28 12:47:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:18,246 INFO L225 Difference]: With dead ends: 49 16.50/7.20 [2019-03-28 12:47:18,246 INFO L226 Difference]: Without dead ends: 28 16.50/7.20 [2019-03-28 12:47:18,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 16.50/7.20 [2019-03-28 12:47:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. 16.50/7.20 [2019-03-28 12:47:18,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. 16.50/7.20 [2019-03-28 12:47:18,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. 16.50/7.20 [2019-03-28 12:47:18,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 41 transitions. 16.50/7.20 [2019-03-28 12:47:18,251 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 41 transitions. Word has length 6 16.50/7.20 [2019-03-28 12:47:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:18,251 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 41 transitions. 16.50/7.20 [2019-03-28 12:47:18,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. 16.50/7.20 [2019-03-28 12:47:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 41 transitions. 16.50/7.20 [2019-03-28 12:47:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 16.50/7.20 [2019-03-28 12:47:18,252 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:18,252 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:18,252 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:18,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:18,252 INFO L82 PathProgramCache]: Analyzing trace with hash 543795836, now seen corresponding path program 1 times 16.50/7.20 [2019-03-28 12:47:18,253 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:18,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:18,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:18,298 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. 16.50/7.20 [2019-03-28 12:47:18,298 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 16.50/7.20 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 16.50/7.20 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) 16.50/7.20 Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 16.50/7.20 [2019-03-28 12:47:18,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat 16.50/7.20 [2019-03-28 12:47:18,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core 16.50/7.20 [2019-03-28 12:47:18,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... 16.50/7.20 [2019-03-28 12:47:18,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. 16.50/7.20 [2019-03-28 12:47:18,403 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. 16.50/7.20 [2019-03-28 12:47:18,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 16.50/7.20 [2019-03-28 12:47:18,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states 16.50/7.20 [2019-03-28 12:47:18,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. 16.50/7.20 [2019-03-28 12:47:18,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 16.50/7.20 [2019-03-28 12:47:18,405 INFO L87 Difference]: Start difference. First operand 26 states and 41 transitions. Second operand 7 states. 16.50/7.20 [2019-03-28 12:47:18,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. 16.50/7.20 [2019-03-28 12:47:18,546 INFO L93 Difference]: Finished difference Result 72 states and 110 transitions. 16.50/7.20 [2019-03-28 12:47:18,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 16.50/7.20 [2019-03-28 12:47:18,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 16.50/7.20 [2019-03-28 12:47:18,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. 16.50/7.20 [2019-03-28 12:47:18,547 INFO L225 Difference]: With dead ends: 72 16.50/7.20 [2019-03-28 12:47:18,547 INFO L226 Difference]: Without dead ends: 51 16.50/7.20 [2019-03-28 12:47:18,548 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 16.50/7.20 [2019-03-28 12:47:18,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. 16.50/7.20 [2019-03-28 12:47:18,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 29. 16.50/7.20 [2019-03-28 12:47:18,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. 16.50/7.20 [2019-03-28 12:47:18,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 44 transitions. 16.50/7.20 [2019-03-28 12:47:18,553 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 44 transitions. Word has length 9 16.50/7.20 [2019-03-28 12:47:18,553 INFO L84 Accepts]: Finished accepts. word is rejected. 16.50/7.20 [2019-03-28 12:47:18,554 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 44 transitions. 16.50/7.20 [2019-03-28 12:47:18,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. 16.50/7.20 [2019-03-28 12:47:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. 16.50/7.20 [2019-03-28 12:47:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 16.50/7.20 [2019-03-28 12:47:18,555 INFO L394 BasicCegarLoop]: Found error trace 16.50/7.20 [2019-03-28 12:47:18,555 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] 16.50/7.20 [2019-03-28 12:47:18,555 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr21REQUIRES_VIOLATION]=== 16.50/7.20 [2019-03-28 12:47:18,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 16.50/7.20 [2019-03-28 12:47:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1242209893, now seen corresponding path program 2 times 16.50/7.20 [2019-03-28 12:47:18,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 16.50/7.20 [2019-03-28 12:47:18,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 16.50/7.20 [2019-03-28 12:47:18,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 16.50/7.20 [2019-03-28 12:47:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.50/7.20 [2019-03-28 12:47:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 16.50/7.20 [2019-03-28 12:47:18,620 INFO L469 BasicCegarLoop]: Counterexample might be feasible 16.50/7.20 [2019-03-28 12:47:18,650 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 16.50/7.20 [2019-03-28 12:47:18,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:18 BasicIcfg 16.50/7.20 [2019-03-28 12:47:18,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 16.50/7.20 [2019-03-28 12:47:18,653 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 16.50/7.20 [2019-03-28 12:47:18,653 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 16.50/7.20 [2019-03-28 12:47:18,656 INFO L276 PluginConnector]: BuchiAutomizer initialized 16.50/7.20 [2019-03-28 12:47:18,657 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 16.50/7.20 [2019-03-28 12:47:18,657 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 16.50/7.20 [2019-03-28 12:47:18,657 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 16.50/7.20 [2019-03-28 12:47:18,657 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 16.50/7.20 [2019-03-28 12:47:18,657 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 16.50/7.20 [2019-03-28 12:47:18,657 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 16.50/7.20 [2019-03-28 12:47:18,658 INFO L168 Benchmark]: Toolchain (without parser) took 2916.00 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 558.4 MB in the beginning and 384.9 MB in the end (delta: 173.5 MB). Peak memory consumption was 203.4 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,659 INFO L168 Benchmark]: CDTParser took 0.17 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. 16.50/7.20 [2019-03-28 12:47:18,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.75 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 558.4 MB in the beginning and 646.2 MB in the end (delta: -87.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 679.5 MB. Free memory was 646.2 MB in the beginning and 642.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,661 INFO L168 Benchmark]: Boogie Preprocessor took 30.98 ms. Allocated memory is still 679.5 MB. Free memory was 642.2 MB in the beginning and 640.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,662 INFO L168 Benchmark]: RCFGBuilder took 420.49 ms. Allocated memory is still 679.5 MB. Free memory was 640.1 MB in the beginning and 611.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,662 INFO L168 Benchmark]: BlockEncodingV2 took 149.79 ms. Allocated memory is still 679.5 MB. Free memory was 611.4 MB in the beginning and 599.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,663 INFO L168 Benchmark]: TraceAbstraction took 1942.48 ms. Allocated memory is still 679.5 MB. Free memory was 598.5 MB in the beginning and 384.9 MB in the end (delta: 213.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,664 INFO L168 Benchmark]: BuchiAutomizer took 4.24 ms. Allocated memory is still 679.5 MB. Free memory is still 384.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.50/7.20 [2019-03-28 12:47:18,667 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 16.50/7.20 --- Results --- 16.50/7.20 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 16.50/7.20 - StatisticsResult: Initial Icfg 16.50/7.20 57 locations, 67 edges 16.50/7.20 - StatisticsResult: Encoded RCFG 16.50/7.20 46 locations, 79 edges 16.50/7.20 * Results from de.uni_freiburg.informatik.ultimate.core: 16.50/7.20 - StatisticsResult: Toolchain Benchmarks 16.50/7.20 Benchmark results are: 16.50/7.20 * CDTParser took 0.17 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. 16.50/7.20 * CACSL2BoogieTranslator took 316.75 ms. Allocated memory was 649.6 MB in the beginning and 679.5 MB in the end (delta: 29.9 MB). Free memory was 558.4 MB in the beginning and 646.2 MB in the end (delta: -87.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 16.50/7.20 * Boogie Procedure Inliner took 45.98 ms. Allocated memory is still 679.5 MB. Free memory was 646.2 MB in the beginning and 642.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 16.50/7.20 * Boogie Preprocessor took 30.98 ms. Allocated memory is still 679.5 MB. Free memory was 642.2 MB in the beginning and 640.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 16.50/7.20 * RCFGBuilder took 420.49 ms. Allocated memory is still 679.5 MB. Free memory was 640.1 MB in the beginning and 611.4 MB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. 16.50/7.20 * BlockEncodingV2 took 149.79 ms. Allocated memory is still 679.5 MB. Free memory was 611.4 MB in the beginning and 599.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 50.3 GB. 16.50/7.20 * TraceAbstraction took 1942.48 ms. Allocated memory is still 679.5 MB. Free memory was 598.5 MB in the beginning and 384.9 MB in the end (delta: 213.6 MB). Peak memory consumption was 213.6 MB. Max. memory is 50.3 GB. 16.50/7.20 * BuchiAutomizer took 4.24 ms. Allocated memory is still 679.5 MB. Free memory is still 384.9 MB. There was no memory consumed. Max. memory is 50.3 GB. 16.50/7.20 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 16.50/7.20 - CounterExampleResult [Line: 19]: pointer dereference may fail 16.50/7.20 pointer dereference may fail 16.50/7.20 We found a FailurePath: 16.50/7.20 [L33] int *a; 16.50/7.20 [L34] int N = __VERIFIER_nondet_int(); 16.50/7.20 [L10] int *best, *prev, i, j, max = 0; 16.50/7.20 [L11] best = (int*) malloc(sizeof(int) * N) 16.50/7.20 [L12] prev = (int*) malloc(sizeof(int) * N) 16.50/7.20 [L14] i = 0 16.50/7.20 [L14] COND TRUE i < N 16.50/7.20 [L15] best[i] = 1 16.50/7.20 [L15] prev[i] = i 16.50/7.20 [L14] i++ 16.50/7.20 [L14] COND TRUE i < N 16.50/7.20 [L15] best[i] = 1 16.50/7.20 [L15] prev[i] = i 16.50/7.20 [L14] i++ 16.50/7.20 [L14] COND FALSE !(i < N) 16.50/7.20 [L17] i = 1 16.50/7.20 [L17] COND TRUE i < N 16.50/7.20 [L18] j = 0 16.50/7.20 [L18] COND TRUE j < i 16.50/7.20 [L19] a[i] 16.50/7.20 16.50/7.20 - StatisticsResult: Ultimate Automizer benchmark data 16.50/7.20 CFG has 1 procedures, 46 locations, 22 error locations. UNSAFE Result, 1.8s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 99 SDtfs, 406 SDslu, 144 SDs, 0 SdLazy, 533 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 29 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 874 SizeOfPredicates, 2 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available 16.50/7.20 RESULT: Ultimate proved your program to be incorrect! 16.50/7.20 !SESSION 2019-03-28 12:47:12.509 ----------------------------------------------- 16.50/7.20 eclipse.buildId=unknown 16.50/7.20 java.version=1.8.0_181 16.50/7.20 java.vendor=Oracle Corporation 16.50/7.20 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 16.50/7.20 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 16.50/7.20 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 16.50/7.20 16.50/7.20 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:47:18.911 16.50/7.20 !MESSAGE The workspace will exit with unsaved changes in this session. 16.50/7.20 Received shutdown request... 16.50/7.20 Ultimate: 16.50/7.20 GTK+ Version Check 16.50/7.20 EOF