MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 07:46:26,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 07:46:26,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 07:46:26,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 07:46:26,269 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 07:46:26,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 07:46:26,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 07:46:26,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 07:46:26,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 07:46:26,275 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 07:46:26,276 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 07:46:26,276 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 07:46:26,277 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 07:46:26,278 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 07:46:26,279 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 07:46:26,279 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 07:46:26,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 07:46:26,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 07:46:26,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 07:46:26,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 07:46:26,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 07:46:26,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 07:46:26,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 07:46:26,289 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 07:46:26,290 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 07:46:26,290 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 07:46:26,291 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 07:46:26,291 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 07:46:26,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 07:46:26,292 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 07:46:26,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 07:46:26,294 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 07:46:26,295 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 07:46:26,295 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 07:46:26,295 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 07:46:26,296 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 07:46:26,296 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 07:46:26,297 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 07:46:26,297 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 07:46:26,298 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 07:46:26,312 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 07:46:26,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 07:46:26,313 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 07:46:26,313 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 07:46:26,314 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 07:46:26,314 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:46:26,314 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 07:46:26,314 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 07:46:26,314 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 07:46:26,314 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 07:46:26,315 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 07:46:26,315 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 07:46:26,315 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 07:46:26,315 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 07:46:26,315 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 07:46:26,315 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 07:46:26,317 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 07:46:26,318 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 07:46:26,318 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 07:46:26,318 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 07:46:26,318 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 07:46:26,318 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 07:46:26,318 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 07:46:26,319 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 07:46:26,319 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:46:26,319 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 07:46:26,319 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 07:46:26,319 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 07:46:26,319 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 07:46:26,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 07:46:26,359 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 07:46:26,362 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 07:46:26,364 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 07:46:26,364 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 07:46:26,365 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:46:26,428 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/f3fd0c13f7db4d94b909bb39b05c172b/FLAG22fadda84 !SESSION 2020-06-22 07:46:23.940 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 07:46:26.701 !MESSAGE Indexed 'FLAG22fadda84' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 07:46:26,788 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 07:46:26,789 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 07:46:26,789 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-06-22 07:46:26,796 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/f3fd0c13f7db4d94b909bb39b05c172b/FLAG22fadda84 [2020-06-22 07:46:27,224 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/f3fd0c13f7db4d94b909bb39b05c172b [2020-06-22 07:46:27,236 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 07:46:27,237 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 07:46:27,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 07:46:27,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 07:46:27,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 07:46:27,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbfc08a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27, skipping insertion in model container [2020-06-22 07:46:27,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 07:46:27,274 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 07:46:27,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:46:27,520 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 07:46:27,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 07:46:27,560 INFO L195 MainTranslator]: Completed translation [2020-06-22 07:46:27,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27 WrapperNode [2020-06-22 07:46:27,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 07:46:27,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 07:46:27,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 07:46:27,562 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 07:46:27,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 07:46:27,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 07:46:27,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 07:46:27,607 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 07:46:27,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... [2020-06-22 07:46:27,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 07:46:27,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 07:46:27,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 07:46:27,638 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 07:46:27,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 07:46:27,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-22 07:46:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 07:46:27,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 07:46:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 07:46:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-06-22 07:46:27,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-22 07:46:28,048 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 07:46:28,049 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 07:46:28,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:28 BoogieIcfgContainer [2020-06-22 07:46:28,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 07:46:28,051 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 07:46:28,051 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 07:46:28,053 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 07:46:28,054 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:28" (1/1) ... [2020-06-22 07:46:28,073 INFO L313 BlockEncoder]: Initial Icfg 46 locations, 53 edges [2020-06-22 07:46:28,074 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 07:46:28,075 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 07:46:28,075 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 07:46:28,076 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 07:46:28,078 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 07:46:28,078 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 07:46:28,079 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 07:46:28,104 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 07:46:28,153 INFO L200 BlockEncoder]: SBE split 21 edges [2020-06-22 07:46:28,159 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 07:46:28,161 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:46:28,189 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-06-22 07:46:28,192 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 07:46:28,193 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 07:46:28,194 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 07:46:28,194 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 07:46:28,194 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 07:46:28,195 INFO L313 BlockEncoder]: Encoded RCFG 39 locations, 79 edges [2020-06-22 07:46:28,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:46:28 BasicIcfg [2020-06-22 07:46:28,196 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 07:46:28,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 07:46:28,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 07:46:28,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 07:46:28,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 07:46:27" (1/4) ... [2020-06-22 07:46:28,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e04cb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:46:28, skipping insertion in model container [2020-06-22 07:46:28,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 07:46:27" (2/4) ... [2020-06-22 07:46:28,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e04cb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 07:46:28, skipping insertion in model container [2020-06-22 07:46:28,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 07:46:28" (3/4) ... [2020-06-22 07:46:28,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e04cb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:46:28, skipping insertion in model container [2020-06-22 07:46:28,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 07:46:28" (4/4) ... [2020-06-22 07:46:28,204 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 07:46:28,214 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 07:46:28,222 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-06-22 07:46:28,239 INFO L257 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-06-22 07:46:28,268 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 07:46:28,269 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 07:46:28,269 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 07:46:28,269 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 07:46:28,269 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 07:46:28,270 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 07:46:28,270 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 07:46:28,270 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 07:46:28,270 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 07:46:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-06-22 07:46:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 07:46:28,292 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 07:46:28,292 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-06-22 07:46:28,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION]=== [2020-06-22 07:46:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1188931749, now seen corresponding path program 1 times [2020-06-22 07:46:28,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:28,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:28,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:28,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:28,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:28,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:46:28,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:46:28,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 07:46:28,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 07:46:28,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:46:28,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:46:28,531 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2020-06-22 07:46:28,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:46:28,756 INFO L93 Difference]: Finished difference Result 39 states and 79 transitions. [2020-06-22 07:46:28,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:46:28,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-06-22 07:46:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 07:46:28,790 INFO L225 Difference]: With dead ends: 39 [2020-06-22 07:46:28,790 INFO L226 Difference]: Without dead ends: 36 [2020-06-22 07:46:28,794 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 [2020-06-22 07:46:28,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-06-22 07:46:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-06-22 07:46:28,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-06-22 07:46:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 73 transitions. [2020-06-22 07:46:28,834 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 73 transitions. Word has length 7 [2020-06-22 07:46:28,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 07:46:28,835 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 73 transitions. [2020-06-22 07:46:28,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 07:46:28,836 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 73 transitions. [2020-06-22 07:46:28,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 07:46:28,836 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 07:46:28,836 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-06-22 07:46:28,837 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION]=== [2020-06-22 07:46:28,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:28,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1188931751, now seen corresponding path program 1 times [2020-06-22 07:46:28,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:28,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:28,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:28,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:28,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 07:46:28,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 07:46:28,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 07:46:28,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 07:46:28,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-22 07:46:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 07:46:28,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 07:46:28,886 INFO L87 Difference]: Start difference. First operand 36 states and 73 transitions. Second operand 3 states. [2020-06-22 07:46:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 07:46:29,118 INFO L93 Difference]: Finished difference Result 71 states and 125 transitions. [2020-06-22 07:46:29,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 07:46:29,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-06-22 07:46:29,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-22 07:46:29,120 INFO L225 Difference]: With dead ends: 71 [2020-06-22 07:46:29,120 INFO L226 Difference]: Without dead ends: 68 [2020-06-22 07:46:29,121 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 [2020-06-22 07:46:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-06-22 07:46:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 51. [2020-06-22 07:46:29,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-06-22 07:46:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 122 transitions. [2020-06-22 07:46:29,131 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 122 transitions. Word has length 7 [2020-06-22 07:46:29,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-22 07:46:29,131 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 122 transitions. [2020-06-22 07:46:29,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-22 07:46:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 122 transitions. [2020-06-22 07:46:29,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-06-22 07:46:29,132 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 07:46:29,132 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-06-22 07:46:29,132 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION]=== [2020-06-22 07:46:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 07:46:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1188931752, now seen corresponding path program 1 times [2020-06-22 07:46:29,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 07:46:29,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 07:46:29,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:29,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 07:46:29,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 07:46:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 07:46:29,215 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2020-06-22 07:46:29,244 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-22 07:46:29,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 07:46:29 BasicIcfg [2020-06-22 07:46:29,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 07:46:29,249 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 07:46:29,249 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 07:46:29,252 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 07:46:29,253 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 07:46:29,253 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 07:46:29,253 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 07:46:29,253 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 07:46:29,253 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 07:46:29,253 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 07:46:29,254 INFO L168 Benchmark]: Toolchain (without parser) took 2017.31 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.3 MB in the beginning and 510.7 MB in the end (delta: 54.6 MB). Peak memory consumption was 87.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,256 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:46:29,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.09 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.3 MB in the beginning and 645.8 MB in the end (delta: -80.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.88 ms. Allocated memory is still 682.6 MB. Free memory was 645.8 MB in the beginning and 644.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,258 INFO L168 Benchmark]: Boogie Preprocessor took 29.92 ms. Allocated memory is still 682.6 MB. Free memory was 644.4 MB in the beginning and 641.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,259 INFO L168 Benchmark]: RCFGBuilder took 413.12 ms. Allocated memory is still 682.6 MB. Free memory was 641.8 MB in the beginning and 612.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,259 INFO L168 Benchmark]: BlockEncodingV2 took 144.76 ms. Allocated memory is still 682.6 MB. Free memory was 612.8 MB in the beginning and 600.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,260 INFO L168 Benchmark]: TraceAbstraction took 1051.44 ms. Allocated memory is still 682.6 MB. Free memory was 599.3 MB in the beginning and 510.7 MB in the end (delta: 88.6 MB). Peak memory consumption was 88.6 MB. Max. memory is 50.3 GB. [2020-06-22 07:46:29,260 INFO L168 Benchmark]: BuchiAutomizer took 4.73 ms. Allocated memory is still 682.6 MB. Free memory is still 510.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 07:46:29,264 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 46 locations, 53 edges - StatisticsResult: Encoded RCFG 39 locations, 79 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 586.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 323.09 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.3 MB in the beginning and 645.8 MB in the end (delta: -80.5 MB). Peak memory consumption was 30.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 44.88 ms. Allocated memory is still 682.6 MB. Free memory was 645.8 MB in the beginning and 644.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 29.92 ms. Allocated memory is still 682.6 MB. Free memory was 644.4 MB in the beginning and 641.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 50.3 GB. * RCFGBuilder took 413.12 ms. Allocated memory is still 682.6 MB. Free memory was 641.8 MB in the beginning and 612.8 MB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 144.76 ms. Allocated memory is still 682.6 MB. Free memory was 612.8 MB in the beginning and 600.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 1051.44 ms. Allocated memory is still 682.6 MB. Free memory was 599.3 MB in the beginning and 510.7 MB in the end (delta: 88.6 MB). Peak memory consumption was 88.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.73 ms. Allocated memory is still 682.6 MB. Free memory is still 510.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] int N = __VERIFIER_nondet_int(); [L22] int M = __VERIFIER_nondet_int(); [L23] COND TRUE N < 1 [L24] N = 1 [L26] COND TRUE M < 1 [L27] M = 1 [L29] int *size = (int*) alloca(N * sizeof(int)); [L30] int *val = (int*) alloca(N * sizeof(int)); [L31] int *cost = (int*) alloca(M * sizeof(int)); [L32] int *best = (int*) alloca(M * sizeof(int)); [L7] int i, j; [L8] j = 1 [L8] COND TRUE j <= N [L9] i = 1 [L9] COND TRUE i <= M [L10] size[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 20 error locations. UNSAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 96 SDslu, 43 SDs, 0 SdLazy, 175 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=2, 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, 2 MinimizatonAttempts, 17 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 07:46:29.495 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check