/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:34:22,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:34:22,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:34:22,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:34:22,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:34:22,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:34:22,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:34:22,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:34:22,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:34:22,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:34:22,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:34:22,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:34:22,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:34:22,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:34:22,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:34:22,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:34:22,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:34:22,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:34:22,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:34:22,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:34:22,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:34:22,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:34:22,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:34:22,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:34:22,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:34:22,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:34:22,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:34:22,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:34:22,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:34:22,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:34:22,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:34:22,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:34:22,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:34:22,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:34:22,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:34:22,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:34:22,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:34:22,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:34:22,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:34:22,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:34:22,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:34:22,291 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:34:22,308 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:34:22,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:34:22,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:34:22,310 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:34:22,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:34:22,310 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:34:22,310 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:34:22,310 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:34:22,311 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:34:22,312 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:22,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:34:22,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:34:22,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:34:22,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:34:22,313 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:34:22,313 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:34:22,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:34:22,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:34:22,314 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:34:22,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:34:22,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:34:22,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:34:22,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:34:22,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:34:22,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:34:22,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:34:22,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:34:22,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:34:22,501 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:34:22,502 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:34:22,573 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_Asle1W/tmp/38feeeaf70da42ad952e5bce07ee17c1/FLAGa41a8e9bc [2020-07-01 11:34:22,918 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:34:22,919 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:34:22,925 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_Asle1W/tmp/38feeeaf70da42ad952e5bce07ee17c1/FLAGa41a8e9bc [2020-07-01 11:34:23,342 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_Asle1W/tmp/38feeeaf70da42ad952e5bce07ee17c1 [2020-07-01 11:34:23,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:34:23,357 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:34:23,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:34:23,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:34:23,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:34:23,363 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72037f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23, skipping insertion in model container [2020-07-01 11:34:23,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:34:23,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:34:23,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:34:23,619 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:34:23,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:34:23,648 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:34:23,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23 WrapperNode [2020-07-01 11:34:23,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:34:23,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:34:23,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:34:23,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:34:23,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:34:23,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:34:23,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:34:23,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:34:23,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:34:23,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:34:23,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:34:23,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:34:23,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (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 11:34:23,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:34:23,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:34:23,931 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:34:23,931 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:34:23,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:34:23 BoogieIcfgContainer [2020-07-01 11:34:23,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:34:23,936 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:34:23,936 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:34:23,938 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:34:23,939 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:34:23" (1/1) ... [2020-07-01 11:34:23,953 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 11:34:23,955 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:34:23,955 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:34:23,956 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:34:23,956 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:34:23,958 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:34:23,960 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:34:23,960 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:34:23,974 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:34:23,988 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:34:23,992 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:34:23,994 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:34:24,005 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 11:34:24,007 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:34:24,008 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:34:24,008 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:34:24,011 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:34:24,012 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:34:24,012 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:34:24,012 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:34:24,012 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:34:24,013 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:34:24,013 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:34:24,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:34:24 BasicIcfg [2020-07-01 11:34:24,014 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:34:24,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:34:24,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:34:24,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:34:24,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:34:23" (1/4) ... [2020-07-01 11:34:24,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d00fcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (2/4) ... [2020-07-01 11:34:24,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d00fcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:34:23" (3/4) ... [2020-07-01 11:34:24,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d00fcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:34:24" (4/4) ... [2020-07-01 11:34:24,022 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:34:24,033 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:34:24,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:34:24,053 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:34:24,076 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:34:24,076 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:34:24,077 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:34:24,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:34:24,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:34:24,077 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:34:24,077 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:34:24,077 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:34:24,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:34:24,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:34:24,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:34:24,151 INFO L271 CegarLoopResult]: At program point L18-1(lines 14 24) the Hoare annotation is: true [2020-07-01 11:34:24,152 INFO L268 CegarLoopResult]: For program point L15(lines 15 23) no Hoare annotation was computed. [2020-07-01 11:34:24,152 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:34:24,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:34:24 BasicIcfg [2020-07-01 11:34:24,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:34:24,161 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:34:24,161 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:34:24,165 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:34:24,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:34:24,166 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:34:23" (1/5) ... [2020-07-01 11:34:24,166 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58856891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:34:24,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:34:23" (2/5) ... [2020-07-01 11:34:24,167 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58856891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:34:24,167 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:34:23" (3/5) ... [2020-07-01 11:34:24,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58856891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:34:24,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:34:24" (4/5) ... [2020-07-01 11:34:24,168 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58856891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:34:24, skipping insertion in model container [2020-07-01 11:34:24,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:34:24,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:34:24" (5/5) ... [2020-07-01 11:34:24,170 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:34:24,200 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:34:24,200 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:34:24,200 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:34:24,200 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:34:24,201 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:34:24,201 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:34:24,201 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:34:24,201 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:34:24,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:34:24,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:34:24,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:34:24,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:34:24,228 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:34:24,228 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:34:24,228 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:34:24,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:34:24,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:34:24,229 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:34:24,229 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:34:24,229 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:34:24,230 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:34:24,235 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [31] ULTIMATE.startENTRY-->L18-1: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 5#L18-1true [2020-07-01 11:34:24,235 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-1true [34] L18-1-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~p~0_8) (< 0 v_ULTIMATE.start_main_~q~0_7)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 3#L15true [29] L15-->L18-1: Formula: (and (= v_ULTIMATE.start_main_~q~0_8 (+ v_ULTIMATE.start_main_~q~0_9 (- 1))) (< v_ULTIMATE.start_main_~q~0_9 v_ULTIMATE.start_main_~p~0_9)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_9, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_9} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_9, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0] 5#L18-1true [2020-07-01 11:34:24,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,242 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-07-01 11:34:24,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811711886] [2020-07-01 11:34:24,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,320 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2044, now seen corresponding path program 1 times [2020-07-01 11:34:24,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453319364] [2020-07-01 11:34:24,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,343 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,345 INFO L82 PathProgramCache]: Analyzing trace with hash 60665, now seen corresponding path program 1 times [2020-07-01 11:34:24,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962480194] [2020-07-01 11:34:24,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,412 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:34:24,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:34:24,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:34:24,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:34:24,414 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:34:24,414 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:24,414 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:34:24,414 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:34:24,414 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:34:24,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:34:24,415 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:34:24,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:34:24,494 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:34:24,495 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:24,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:34:24,501 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:24,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:34:24,544 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:34:24,589 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:34:24,592 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:34:24,592 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:34:24,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:34:24,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:34:24,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:34:24,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:24,593 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:34:24,593 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:34:24,593 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:34:24,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:34:24,593 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:34:24,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:34:24,642 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:34:24,648 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:24,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:34:24,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:34:24,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:34:24,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:34:24,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:34:24,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:34:24,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:34:24,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:34:24,666 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:34:24,676 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:34:24,676 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:24,682 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:34:24,682 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:34:24,683 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:34:24,684 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0) = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2020-07-01 11:34:24,718 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:34:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:34:24,754 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:34:24,755 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:34:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:34:24,766 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:34:24,766 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:34:24,785 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 11:34:24,814 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:34:24,820 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:34:24,821 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:34:24,861 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 11 transitions. Complement of second has 4 states. [2020-07-01 11:34:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:34:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:34:24,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 11:34:24,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:34:24,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:24,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:34:24,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:24,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:34:24,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:24,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 11 transitions. [2020-07-01 11:34:24,876 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:34:24,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 11 transitions. [2020-07-01 11:34:24,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 11:34:24,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 11:34:24,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-07-01 11:34:24,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:34:24,883 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-07-01 11:34:24,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-07-01 11:34:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2020-07-01 11:34:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:34:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 11:34:24,912 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:34:24,912 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 11:34:24,912 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:34:24,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 11:34:24,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:34:24,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:34:24,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:34:24,913 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:34:24,913 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:34:24,914 INFO L794 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L18-1: Formula: (and (= v_ULTIMATE.start_main_~p~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~q~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_1, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~p~0, ULTIMATE.start_main_~q~0, ULTIMATE.start_main_#res] 50#L18-1 [34] L18-1-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~p~0_8) (< 0 v_ULTIMATE.start_main_~q~0_7)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 44#L15 [2020-07-01 11:34:24,914 INFO L796 eck$LassoCheckResult]: Loop: 44#L15 [47] L15-->L18-1: Formula: (and (< v_ULTIMATE.start_main_~p~0_12 v_ULTIMATE.start_main_~q~0_11) (<= v_ULTIMATE.start_main_~p~0_12 v_ULTIMATE.start_main_~q~0_11) (= v_ULTIMATE.start_main_~p~0_11 (+ v_ULTIMATE.start_main_~p~0_12 (- 1)))) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_12, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_11} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_11, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0] 45#L18-1 [34] L18-1-->L15: Formula: (and (< 0 v_ULTIMATE.start_main_~p~0_8) (< 0 v_ULTIMATE.start_main_~q~0_7)) InVars {ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} OutVars{ULTIMATE.start_main_~p~0=v_ULTIMATE.start_main_~p~0_8, ULTIMATE.start_main_~q~0=v_ULTIMATE.start_main_~q~0_7} AuxVars[] AssignedVars[] 44#L15 [2020-07-01 11:34:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1956, now seen corresponding path program 1 times [2020-07-01 11:34:24,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948460435] [2020-07-01 11:34:24,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,923 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,923 INFO L82 PathProgramCache]: Analyzing trace with hash 2452, now seen corresponding path program 1 times [2020-07-01 11:34:24,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069748612] [2020-07-01 11:34:24,924 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,932 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:24,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1881207, now seen corresponding path program 1 times [2020-07-01 11:34:24,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:34:24,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643372437] [2020-07-01 11:34:24,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:34:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:34:24,944 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:34:24,976 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:34:24,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:34:24,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:34:24,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:34:24,977 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:34:24,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:24,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:34:24,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:34:24,978 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:34:24,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:34:24,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:34:24,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:34:25,016 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:34:25,017 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:25,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:34:25,020 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:34:25,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:34:25,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:34:25,169 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:34:25,173 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:34:25,173 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:34:25,173 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:34:25,173 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:34:25,174 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:34:25,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:25,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:34:25,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:34:25,174 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:34:25,174 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:34:25,174 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:34:25,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:34:25,206 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:34:25,206 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:25,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:34:25,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:34:25,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:34:25,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:34:25,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:34:25,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:34:25,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:34:25,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:34:25,218 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:34:25,223 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:34:25,223 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:34:25,229 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:34:25,229 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:34:25,229 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:34:25,229 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0) = 1*ULTIMATE.start_main_~p~0 Supporting invariants [] [2020-07-01 11:34:25,260 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:34:25,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:34:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:34:25,281 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:34:25,281 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:34:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:34:25,287 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:34:25,287 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:34:25,312 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 11:34:25,312 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:34:25,313 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:34:25,313 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 11:34:25,337 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 8 states. [2020-07-01 11:34:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 11:34:25,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:34:25,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 11:34:25,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:34:25,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:25,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 11:34:25,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:25,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 11:34:25,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:34:25,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2020-07-01 11:34:25,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:34:25,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-01 11:34:25,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:34:25,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:34:25,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:34:25,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:34:25,344 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:34:25,344 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:34:25,344 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:34:25,345 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:34:25,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:34:25,345 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:34:25,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:34:25,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:34:25 BasicIcfg [2020-07-01 11:34:25,351 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:34:25,354 INFO L168 Benchmark]: Toolchain (without parser) took 1996.07 ms. Allocated memory was 649.6 MB in the beginning and 701.0 MB in the end (delta: 51.4 MB). Free memory was 556.3 MB in the beginning and 519.2 MB in the end (delta: 37.1 MB). Peak memory consumption was 88.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,354 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 579.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:34:25,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.77 ms. Allocated memory was 649.6 MB in the beginning and 701.0 MB in the end (delta: 51.4 MB). Free memory was 556.3 MB in the beginning and 664.3 MB in the end (delta: -108.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,356 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 701.0 MB. Free memory was 664.3 MB in the beginning and 662.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,357 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 701.0 MB. Free memory was 662.9 MB in the beginning and 661.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,357 INFO L168 Benchmark]: RCFGBuilder took 233.44 ms. Allocated memory is still 701.0 MB. Free memory was 661.6 MB in the beginning and 647.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,358 INFO L168 Benchmark]: BlockEncodingV2 took 77.80 ms. Allocated memory is still 701.0 MB. Free memory was 647.2 MB in the beginning and 641.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,358 INFO L168 Benchmark]: TraceAbstraction took 145.82 ms. Allocated memory is still 701.0 MB. Free memory was 641.8 MB in the beginning and 632.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,359 INFO L168 Benchmark]: BuchiAutomizer took 1189.82 ms. Allocated memory is still 701.0 MB. Free memory was 632.4 MB in the beginning and 519.2 MB in the end (delta: 113.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:34:25,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 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 579.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.77 ms. Allocated memory was 649.6 MB in the beginning and 701.0 MB in the end (delta: 51.4 MB). Free memory was 556.3 MB in the beginning and 664.3 MB in the end (delta: -108.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.39 ms. Allocated memory is still 701.0 MB. Free memory was 664.3 MB in the beginning and 662.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 701.0 MB. Free memory was 662.9 MB in the beginning and 661.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 233.44 ms. Allocated memory is still 701.0 MB. Free memory was 661.6 MB in the beginning and 647.2 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.80 ms. Allocated memory is still 701.0 MB. Free memory was 647.2 MB in the beginning and 641.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.82 ms. Allocated memory is still 701.0 MB. Free memory was 641.8 MB in the beginning and 632.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1189.82 ms. Allocated memory is still 701.0 MB. Free memory was 632.4 MB in the beginning and 519.2 MB in the end (delta: 113.2 MB). Peak memory consumption was 113.2 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, 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=3occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 33ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:34:19.947 ----------------------------------------------- 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_Asle1W/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:34:26.007 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check