/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:26:51,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:26:51,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:26:51,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:26:51,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:26:51,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:26:51,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:26:51,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:26:51,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:26:51,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:26:51,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:26:51,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:26:51,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:26:51,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:26:51,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:26:51,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:26:51,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:26:51,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:26:51,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:26:51,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:26:51,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:26:51,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:26:51,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:26:51,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:26:51,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:26:51,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:26:51,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:26:51,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:26:51,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:26:51,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:26:51,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:26:51,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:26:51,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:26:51,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:26:51,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:26:51,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:26:51,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:26:51,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:26:51,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:26:51,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:26:51,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:26:51,983 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 12:26:51,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:26:51,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:26:52,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:26:52,000 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:26:52,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:26:52,000 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:26:52,001 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:26:52,001 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:26:52,001 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:26:52,001 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:26:52,001 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:26:52,001 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:26:52,002 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:26:52,002 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:26:52,002 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:26:52,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:26:52,002 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:26:52,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:26:52,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:26:52,003 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:26:52,003 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:26:52,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:26:52,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:26:52,004 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:26:52,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:26:52,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:26:52,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:26:52,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:26:52,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:26:52,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:26:52,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:26:52,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:26:52,194 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:26:52,194 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:26:52,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:26:52,264 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_EWlBs6/tmp/c910a0a4113d4fa28931b1dcf200161f/FLAG113a2211a [2020-07-01 12:26:52,611 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:26:52,612 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 12:26:52,619 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_EWlBs6/tmp/c910a0a4113d4fa28931b1dcf200161f/FLAG113a2211a [2020-07-01 12:26:53,029 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_EWlBs6/tmp/c910a0a4113d4fa28931b1dcf200161f [2020-07-01 12:26:53,040 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:26:53,042 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:26:53,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:26:53,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:26:53,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:26:53,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d1580a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53, skipping insertion in model container [2020-07-01 12:26:53,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:26:53,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:26:53,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:26:53,312 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:26:53,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:26:53,343 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:26:53,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53 WrapperNode [2020-07-01 12:26:53,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:26:53,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:26:53,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:26:53,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:26:53,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:26:53,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:26:53,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:26:53,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:26:53,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:26:53,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:26:53,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:26:53,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:26:53,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (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 [2020-07-01 12:26:53,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-01 12:26:53,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:26:53,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:26:53,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-01 12:26:53,713 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:26:53,714 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 12:26:53,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:26:53 BoogieIcfgContainer [2020-07-01 12:26:53,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:26:53,718 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:26:53,718 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:26:53,720 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:26:53,721 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:26:53" (1/1) ... [2020-07-01 12:26:53,735 INFO L313 BlockEncoder]: Initial Icfg 28 locations, 33 edges [2020-07-01 12:26:53,736 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:26:53,737 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:26:53,737 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:26:53,738 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:26:53,740 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:26:53,741 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:26:53,741 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:26:53,762 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:26:53,790 INFO L200 BlockEncoder]: SBE split 14 edges [2020-07-01 12:26:53,797 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:26:53,799 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:26:53,817 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 12:26:53,820 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 12:26:53,821 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:26:53,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:26:53,822 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:26:53,822 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:26:53,823 INFO L313 BlockEncoder]: Encoded RCFG 22 locations, 40 edges [2020-07-01 12:26:53,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:26:53 BasicIcfg [2020-07-01 12:26:53,824 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:26:53,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:26:53,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:26:53,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:26:53,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:26:53" (1/4) ... [2020-07-01 12:26:53,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4ab638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:26:53, skipping insertion in model container [2020-07-01 12:26:53,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:26:53" (2/4) ... [2020-07-01 12:26:53,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4ab638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:26:53, skipping insertion in model container [2020-07-01 12:26:53,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:26:53" (3/4) ... [2020-07-01 12:26:53,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4ab638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:26:53, skipping insertion in model container [2020-07-01 12:26:53,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:26:53" (4/4) ... [2020-07-01 12:26:53,833 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:26:53,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:26:53,851 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-07-01 12:26:53,865 INFO L251 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-07-01 12:26:53,889 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:26:53,889 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:26:53,889 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:26:53,889 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:26:53,889 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:26:53,890 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:26:53,890 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:26:53,890 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:26:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-01 12:26:53,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-07-01 12:26:53,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-01 12:26:53,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-07-01 12:26:53,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-07-01 12:26:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:26:53,918 INFO L82 PathProgramCache]: Analyzing trace with hash 5347, now seen corresponding path program 1 times [2020-07-01 12:26:53,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:26:53,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693245539] [2020-07-01 12:26:53,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:26:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:26:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:26:54,055 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:26:54,056 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-01 12:26:54,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-01 12:26:54,077 INFO L308 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-07-01 12:26:54,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:26:54 BasicIcfg [2020-07-01 12:26:54,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:26:54,081 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:26:54,082 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:26:54,085 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:26:54,085 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:26:54,085 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:26:54,085 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:26:54,085 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:26:54,086 INFO L96 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-07-01 12:26:54,086 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:26:54,088 INFO L168 Benchmark]: Toolchain (without parser) took 1045.58 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.1 MB in the beginning and 600.9 MB in the end (delta: -44.8 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:26:54,089 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:26:54,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.20 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.1 MB in the beginning and 655.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 692.6 MB. Free memory was 655.4 MB in the beginning and 653.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,091 INFO L168 Benchmark]: Boogie Preprocessor took 23.30 ms. Allocated memory is still 692.6 MB. Free memory was 653.2 MB in the beginning and 651.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,092 INFO L168 Benchmark]: RCFGBuilder took 311.24 ms. Allocated memory is still 692.6 MB. Free memory was 651.1 MB in the beginning and 628.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,092 INFO L168 Benchmark]: BlockEncodingV2 took 105.45 ms. Allocated memory is still 692.6 MB. Free memory was 628.9 MB in the beginning and 621.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,093 INFO L168 Benchmark]: TraceAbstraction took 256.10 ms. Allocated memory is still 692.6 MB. Free memory was 620.3 MB in the beginning and 600.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:26:54,093 INFO L168 Benchmark]: BuchiAutomizer took 4.40 ms. Allocated memory is still 692.6 MB. Free memory is still 600.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:26:54,097 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 28 locations, 33 edges - StatisticsResult: Encoded RCFG 22 locations, 40 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 301.20 ms. Allocated memory was 649.6 MB in the beginning and 692.6 MB in the end (delta: 43.0 MB). Free memory was 556.1 MB in the beginning and 655.4 MB in the end (delta: -99.3 MB). Peak memory consumption was 28.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 38.05 ms. Allocated memory is still 692.6 MB. Free memory was 655.4 MB in the beginning and 653.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 23.30 ms. Allocated memory is still 692.6 MB. Free memory was 653.2 MB in the beginning and 651.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 311.24 ms. Allocated memory is still 692.6 MB. Free memory was 651.1 MB in the beginning and 628.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 105.45 ms. Allocated memory is still 692.6 MB. Free memory was 628.9 MB in the beginning and 621.4 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 256.10 ms. Allocated memory is still 692.6 MB. Free memory was 620.3 MB in the beginning and 600.9 MB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.40 ms. Allocated memory is still 692.6 MB. Free memory is still 600.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L24] char *s1; [L25] char *s2; [L26] int n = __VERIFIER_nondet_int(); [L5] char *s = s1; [L7] \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 10 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=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 12:26:49.735 ----------------------------------------------- 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/BenchExec_run_EWlBs6/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:26:54.330 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check