/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 12:19:22,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:19:22,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:19:22,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:19:22,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:19:22,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:19:22,072 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:19:22,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:19:22,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:19:22,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:19:22,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:19:22,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:19:22,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:19:22,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:19:22,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:19:22,081 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:19:22,082 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:19:22,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:19:22,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:19:22,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:19:22,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:19:22,089 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:19:22,090 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:19:22,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:19:22,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:19:22,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:19:22,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:19:22,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:19:22,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:19:22,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:19:22,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:19:22,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:19:22,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:19:22,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:19:22,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:19:22,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:19:22,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:19:22,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:19:22,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:19:22,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:19:22,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:19:22,102 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:19:22,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:19:22,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:19:22,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:19:22,119 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:19:22,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:19:22,119 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:19:22,119 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:19:22,119 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:19:22,119 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:19:22,120 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:19:22,120 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:19:22,120 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:19:22,120 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:19:22,120 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:19:22,121 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:19:22,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:19:22,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:19:22,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:19:22,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:19:22,121 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:19:22,122 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:19:22,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:19:22,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:19:22,122 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:19:22,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:19:22,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:19:22,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:19:22,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:19:22,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:19:22,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:19:22,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:19:22,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:19:22,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:19:22,313 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:19:22,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:19:22,409 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_2okyFB/tmp/222f73cc67be47c383767453ed840b86/FLAG7e6344995 [2020-07-01 12:19:22,751 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:19:22,752 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:19:22,758 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_2okyFB/tmp/222f73cc67be47c383767453ed840b86/FLAG7e6344995 [2020-07-01 12:19:23,151 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_2okyFB/tmp/222f73cc67be47c383767453ed840b86 [2020-07-01 12:19:23,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:19:23,164 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:19:23,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:19:23,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:19:23,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:19:23,169 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1959a67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23, skipping insertion in model container [2020-07-01 12:19:23,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:19:23,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:19:23,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:19:23,441 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:19:23,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:19:23,471 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:19:23,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23 WrapperNode [2020-07-01 12:19:23,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:19:23,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:19:23,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:19:23,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:19:23,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:19:23,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:19:23,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:19:23,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:19:23,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:19:23,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:19:23,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:19:23,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:19:23,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (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 12:19:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:19:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:19:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:19:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:19:23,810 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:19:23,810 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-01 12:19:23,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:19:23 BoogieIcfgContainer [2020-07-01 12:19:23,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:19:23,815 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:19:23,815 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:19:23,817 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:19:23,818 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:19:23" (1/1) ... [2020-07-01 12:19:23,831 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 16 edges [2020-07-01 12:19:23,832 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:19:23,833 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:19:23,834 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:19:23,834 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:19:23,836 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:19:23,837 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:19:23,837 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:19:23,852 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:19:23,868 INFO L200 BlockEncoder]: SBE split 5 edges [2020-07-01 12:19:23,872 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:19:23,874 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:19:23,902 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-07-01 12:19:23,904 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:19:23,905 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:19:23,906 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:19:23,906 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:19:23,906 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:19:23,907 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 14 edges [2020-07-01 12:19:23,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:19:23 BasicIcfg [2020-07-01 12:19:23,907 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:19:23,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:19:23,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:19:23,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:19:23,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:19:23" (1/4) ... [2020-07-01 12:19:23,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafff8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:19:23, skipping insertion in model container [2020-07-01 12:19:23,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:19:23" (2/4) ... [2020-07-01 12:19:23,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafff8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:19:23, skipping insertion in model container [2020-07-01 12:19:23,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:19:23" (3/4) ... [2020-07-01 12:19:23,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafff8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:19:23, skipping insertion in model container [2020-07-01 12:19:23,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:19:23" (4/4) ... [2020-07-01 12:19:23,916 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:19:23,929 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:19:23,937 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-07-01 12:19:23,951 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-01 12:19:23,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:19:23,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:19:23,975 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:19:23,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:19:23,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:19:23,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:19:23,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:19:23,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:19:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-07-01 12:19:23,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-01 12:19:23,996 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:19:23,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-01 12:19:23,997 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 12:19:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:19:24,003 INFO L82 PathProgramCache]: Analyzing trace with hash 87686, now seen corresponding path program 1 times [2020-07-01 12:19:24,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:19:24,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056889057] [2020-07-01 12:19:24,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:19:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:19:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:19:24,151 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:19:24,152 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-01 12:19:24,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:19:24,175 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:19:24,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:19:24 BasicIcfg [2020-07-01 12:19:24,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:19:24,179 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:19:24,179 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:19:24,182 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:19:24,183 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:19:24,183 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:19:24,183 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:19:24,183 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:19:24,183 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:19:24,183 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:19:24,186 INFO L168 Benchmark]: Toolchain (without parser) took 1021.29 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 562.7 MB in the beginning and 609.2 MB in the end (delta: -46.4 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:19:24,187 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:19:24,187 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.55 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 562.7 MB in the beginning and 658.4 MB in the end (delta: -95.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,188 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.84 ms. Allocated memory is still 694.7 MB. Free memory was 658.4 MB in the beginning and 656.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,189 INFO L168 Benchmark]: Boogie Preprocessor took 22.89 ms. Allocated memory is still 694.7 MB. Free memory was 656.2 MB in the beginning and 655.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,189 INFO L168 Benchmark]: RCFGBuilder took 279.41 ms. Allocated memory is still 694.7 MB. Free memory was 655.1 MB in the beginning and 637.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,190 INFO L168 Benchmark]: BlockEncodingV2 took 92.57 ms. Allocated memory is still 694.7 MB. Free memory was 637.3 MB in the beginning and 630.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,191 INFO L168 Benchmark]: TraceAbstraction took 269.79 ms. Allocated memory is still 694.7 MB. Free memory was 629.7 MB in the beginning and 610.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,191 INFO L168 Benchmark]: BuchiAutomizer took 4.46 ms. Allocated memory is still 694.7 MB. Free memory was 610.3 MB in the beginning and 609.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:24,195 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 15 locations, 16 edges - StatisticsResult: Encoded RCFG 9 locations, 14 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 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 307.55 ms. Allocated memory was 649.6 MB in the beginning and 694.7 MB in the end (delta: 45.1 MB). Free memory was 562.7 MB in the beginning and 658.4 MB in the end (delta: -95.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 38.84 ms. Allocated memory is still 694.7 MB. Free memory was 658.4 MB in the beginning and 656.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 22.89 ms. Allocated memory is still 694.7 MB. Free memory was 656.2 MB in the beginning and 655.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 279.41 ms. Allocated memory is still 694.7 MB. Free memory was 655.1 MB in the beginning and 637.3 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 92.57 ms. Allocated memory is still 694.7 MB. Free memory was 637.3 MB in the beginning and 630.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 269.79 ms. Allocated memory is still 694.7 MB. Free memory was 629.7 MB in the beginning and 610.3 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.46 ms. Allocated memory is still 694.7 MB. Free memory was 610.3 MB in the beginning and 609.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L13] char* s2; [L14] char* s1; [L3] char *dst = s1; [L4] const char *src = s2; [L6] dst++ [L6] src++ - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 12:19:19.884 ----------------------------------------------- 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_2okyFB/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:19:24.428 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check