/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:20:06,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:20:06,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:20:06,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:20:06,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:20:06,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:20:06,966 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:20:06,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:20:06,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:20:06,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:20:06,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:20:06,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:20:06,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:20:06,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:20:06,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:20:06,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:20:06,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:20:06,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:20:06,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:20:06,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:20:06,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:20:06,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:20:06,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:20:06,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:20:06,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:20:06,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:20:06,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:20:06,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:20:06,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:20:06,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:20:06,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:20:06,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:20:06,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:20:06,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:20:06,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:20:06,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:20:06,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:20:06,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:20:06,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:20:06,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:20:06,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:20:06,995 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:20:07,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:20:07,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:20:07,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:20:07,011 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:20:07,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:20:07,012 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:07,012 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:20:07,012 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:20:07,012 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:20:07,012 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:20:07,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:20:07,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:20:07,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:20:07,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:20:07,014 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:20:07,014 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:20:07,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:20:07,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:20:07,015 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:20:07,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:20:07,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:20:07,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:20:07,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:20:07,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:20:07,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:20:07,193 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:20:07,196 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:20:07,198 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:20:07,198 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:20:07,199 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:20:07,267 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ZyssiL/tmp/457796dc39434f97aad2ed509424d84e/FLAG573cd7d84 [2020-07-01 12:20:07,617 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:20:07,618 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:20:07,618 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2020-07-01 12:20:07,625 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ZyssiL/tmp/457796dc39434f97aad2ed509424d84e/FLAG573cd7d84 [2020-07-01 12:20:08,022 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_ZyssiL/tmp/457796dc39434f97aad2ed509424d84e [2020-07-01 12:20:08,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:20:08,034 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:20:08,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:08,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:20:08,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:20:08,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ac2c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08, skipping insertion in model container [2020-07-01 12:20:08,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:20:08,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:20:08,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:08,305 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:20:08,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:20:08,343 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:20:08,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08 WrapperNode [2020-07-01 12:20:08,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:20:08,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:08,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:20:08,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:20:08,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:20:08,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:20:08,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:20:08,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:20:08,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:20:08,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:20:08,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:20:08,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:20:08,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:20:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:20:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:20:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:20:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:20:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-01 12:20:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-01 12:20:08,826 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:20:08,827 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:20:08,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:08 BoogieIcfgContainer [2020-07-01 12:20:08,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:20:08,832 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:20:08,832 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:20:08,834 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:20:08,834 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:08" (1/1) ... [2020-07-01 12:20:08,850 INFO L313 BlockEncoder]: Initial Icfg 46 locations, 53 edges [2020-07-01 12:20:08,851 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:20:08,852 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:20:08,852 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:20:08,853 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:20:08,855 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:20:08,856 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:20:08,856 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:20:08,880 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:20:08,925 INFO L200 BlockEncoder]: SBE split 21 edges [2020-07-01 12:20:08,930 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:20:08,932 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:08,954 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-07-01 12:20:08,957 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:20:08,958 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:20:08,958 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:20:08,959 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:20:08,959 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:20:08,960 INFO L313 BlockEncoder]: Encoded RCFG 39 locations, 79 edges [2020-07-01 12:20:08,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:08 BasicIcfg [2020-07-01 12:20:08,960 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:20:08,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:20:08,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:20:08,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:20:08,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:20:08" (1/4) ... [2020-07-01 12:20:08,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250c30dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:08, skipping insertion in model container [2020-07-01 12:20:08,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:20:08" (2/4) ... [2020-07-01 12:20:08,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250c30dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:20:08, skipping insertion in model container [2020-07-01 12:20:08,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:20:08" (3/4) ... [2020-07-01 12:20:08,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250c30dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:08, skipping insertion in model container [2020-07-01 12:20:08,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:20:08" (4/4) ... [2020-07-01 12:20:08,969 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:20:08,980 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:20:08,988 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-07-01 12:20:09,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-07-01 12:20:09,025 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:20:09,025 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:20:09,025 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:20:09,025 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:20:09,026 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:20:09,026 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:20:09,026 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:20:09,026 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:20:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-07-01 12:20:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-01 12:20:09,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:20:09,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:20:09,048 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-07-01 12:20:09,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:09,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1188931749, now seen corresponding path program 1 times [2020-07-01 12:20:09,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:09,065 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94318232] [2020-07-01 12:20:09,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:20:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:20:09,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94318232] [2020-07-01 12:20:09,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:20:09,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:20:09,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133626000] [2020-07-01 12:20:09,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:20:09,250 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:20:09,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:20:09,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:20:09,266 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 3 states. [2020-07-01 12:20:09,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:20:09,457 INFO L93 Difference]: Finished difference Result 74 states and 137 transitions. [2020-07-01 12:20:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:20:09,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-07-01 12:20:09,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:20:09,471 INFO L225 Difference]: With dead ends: 74 [2020-07-01 12:20:09,472 INFO L226 Difference]: Without dead ends: 39 [2020-07-01 12:20:09,475 INFO L675 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 [2020-07-01 12:20:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-07-01 12:20:09,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-07-01 12:20:09,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-01 12:20:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 64 transitions. [2020-07-01 12:20:09,518 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 64 transitions. Word has length 7 [2020-07-01 12:20:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:20:09,518 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 64 transitions. [2020-07-01 12:20:09,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:20:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 64 transitions. [2020-07-01 12:20:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-01 12:20:09,519 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:20:09,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:20:09,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:20:09,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-07-01 12:20:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:09,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1189170077, now seen corresponding path program 1 times [2020-07-01 12:20:09,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:09,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546962907] [2020-07-01 12:20:09,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:20:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:20:09,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546962907] [2020-07-01 12:20:09,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:20:09,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:20:09,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180750717] [2020-07-01 12:20:09,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-01 12:20:09,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:20:09,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:20:09,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:20:09,613 INFO L87 Difference]: Start difference. First operand 39 states and 64 transitions. Second operand 3 states. [2020-07-01 12:20:09,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:20:09,725 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions. [2020-07-01 12:20:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:20:09,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-07-01 12:20:09,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-01 12:20:09,727 INFO L225 Difference]: With dead ends: 39 [2020-07-01 12:20:09,727 INFO L226 Difference]: Without dead ends: 36 [2020-07-01 12:20:09,728 INFO L675 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 [2020-07-01 12:20:09,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-07-01 12:20:09,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-07-01 12:20:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-07-01 12:20:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 58 transitions. [2020-07-01 12:20:09,734 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 58 transitions. Word has length 7 [2020-07-01 12:20:09,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-01 12:20:09,734 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 58 transitions. [2020-07-01 12:20:09,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-01 12:20:09,735 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2020-07-01 12:20:09,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-01 12:20:09,735 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:20:09,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-01 12:20:09,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-01 12:20:09,736 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-07-01 12:20:09,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:20:09,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1189170079, now seen corresponding path program 1 times [2020-07-01 12:20:09,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:20:09,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408381463] [2020-07-01 12:20:09,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:20:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:20:09,821 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:20:09,821 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-01 12:20:09,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-01 12:20:09,848 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:20:09,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:20:09 BasicIcfg [2020-07-01 12:20:09,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:20:09,851 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:20:09,851 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:20:09,854 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:20:09,855 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:09,855 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:09,855 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:09,855 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:09,855 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:20:09,855 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:20:09,858 INFO L168 Benchmark]: Toolchain (without parser) took 1822.62 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 438.6 MB in the beginning and 417.2 MB in the end (delta: 21.4 MB). Peak memory consumption was 74.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,858 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:20:09,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.26 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 437.9 MB in the beginning and 533.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 567.8 MB. Free memory was 533.3 MB in the beginning and 531.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,860 INFO L168 Benchmark]: Boogie Preprocessor took 28.35 ms. Allocated memory is still 567.8 MB. Free memory was 531.2 MB in the beginning and 529.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,861 INFO L168 Benchmark]: RCFGBuilder took 415.88 ms. Allocated memory is still 567.8 MB. Free memory was 529.2 MB in the beginning and 501.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,862 INFO L168 Benchmark]: BlockEncodingV2 took 128.99 ms. Allocated memory is still 567.8 MB. Free memory was 501.6 MB in the beginning and 488.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,862 INFO L168 Benchmark]: TraceAbstraction took 889.05 ms. Allocated memory is still 567.8 MB. Free memory was 488.1 MB in the beginning and 417.8 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,863 INFO L168 Benchmark]: BuchiAutomizer took 4.18 ms. Allocated memory is still 567.8 MB. Free memory was 417.8 MB in the beginning and 417.2 MB in the end (delta: 678.0 kB). Peak memory consumption was 678.0 kB. Max. memory is 50.3 GB. [2020-07-01 12:20:09,866 INFO L336 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 0.16 ms. Allocated memory is still 514.9 MB. Free memory is still 458.6 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 308.26 ms. Allocated memory was 514.9 MB in the beginning and 567.8 MB in the end (delta: 53.0 MB). Free memory was 437.9 MB in the beginning and 533.3 MB in the end (delta: -95.3 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 42.03 ms. Allocated memory is still 567.8 MB. Free memory was 533.3 MB in the beginning and 531.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 28.35 ms. Allocated memory is still 567.8 MB. Free memory was 531.2 MB in the beginning and 529.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 415.88 ms. Allocated memory is still 567.8 MB. Free memory was 529.2 MB in the beginning and 501.6 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 128.99 ms. Allocated memory is still 567.8 MB. Free memory was 501.6 MB in the beginning and 488.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 50.3 GB. * TraceAbstraction took 889.05 ms. Allocated memory is still 567.8 MB. Free memory was 488.1 MB in the beginning and 417.8 MB in the end (delta: 70.3 MB). Peak memory consumption was 70.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.18 ms. Allocated memory is still 567.8 MB. Free memory was 417.8 MB in the beginning and 417.2 MB in the end (delta: 678.0 kB). Peak memory consumption was 678.0 kB. 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. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 111 SDslu, 4 SDs, 0 SdLazy, 97 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 12:20:04.763 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_ZyssiL/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:20:10.099 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check