/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 13:08:36,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:08:36,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:08:36,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:08:36,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:08:36,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:08:36,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:08:36,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:08:36,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:08:36,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:08:36,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:08:36,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:08:36,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:08:36,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:08:36,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:08:36,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:08:36,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:08:36,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:08:36,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:08:36,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:08:36,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:08:36,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:08:36,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:08:36,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:08:36,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:08:36,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:08:36,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:08:36,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:08:36,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:08:36,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:08:36,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:08:36,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:08:36,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:08:36,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:08:36,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:08:36,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:08:36,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:08:36,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:08:36,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:08:36,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:08:36,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:08:36,983 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:08:36,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:08:36,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:08:36,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:08:36,999 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:08:36,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:08:37,000 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:08:37,000 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:08:37,000 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:08:37,000 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:08:37,000 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:08:37,000 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:08:37,001 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:08:37,001 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:08:37,001 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:08:37,001 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:37,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:08:37,001 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:08:37,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:08:37,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:08:37,002 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:08:37,002 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:08:37,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:08:37,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:08:37,003 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:08:37,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:08:37,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:08:37,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:08:37,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:08:37,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:08:37,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:08:37,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:08:37,184 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:08:37,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:08:37,186 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:08:37,187 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:08:37,257 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_WoMyfu/tmp/785356399d2e45439520a5e6975c59e1/FLAGcf4316c3d [2020-07-01 13:08:37,591 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:08:37,592 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:08:37,598 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_WoMyfu/tmp/785356399d2e45439520a5e6975c59e1/FLAGcf4316c3d [2020-07-01 13:08:38,001 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_WoMyfu/tmp/785356399d2e45439520a5e6975c59e1 [2020-07-01 13:08:38,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:08:38,014 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:08:38,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:08:38,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:08:38,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:08:38,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187e8123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:08:38,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:08:38,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:08:38,262 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:08:38,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:08:38,292 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:08:38,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38 WrapperNode [2020-07-01 13:08:38,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:08:38,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:08:38,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:08:38,293 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:08:38,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:08:38,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:08:38,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:08:38,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:08:38,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:08:38,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:08:38,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:08:38,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:08:38,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (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 13:08:38,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:08:38,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:08:38,557 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:08:38,558 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 13:08:38,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:08:38 BoogieIcfgContainer [2020-07-01 13:08:38,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:08:38,562 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:08:38,562 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:08:38,564 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:08:38,565 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:08:38" (1/1) ... [2020-07-01 13:08:38,576 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 13:08:38,578 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:08:38,578 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:08:38,579 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:08:38,579 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:08:38,581 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:08:38,582 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:08:38,582 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:08:38,595 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:08:38,602 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 13:08:38,607 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 13:08:38,609 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:08:38,624 INFO L100 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2020-07-01 13:08:38,626 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 13:08:38,627 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:08:38,627 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:08:38,627 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:08:38,628 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:08:38,628 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 13:08:38,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:08:38 BasicIcfg [2020-07-01 13:08:38,629 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:08:38,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:08:38,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:08:38,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:08:38,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:08:38" (1/4) ... [2020-07-01 13:08:38,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c60061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (2/4) ... [2020-07-01 13:08:38,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c60061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:08:38" (3/4) ... [2020-07-01 13:08:38,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c60061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:08:38" (4/4) ... [2020-07-01 13:08:38,637 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:08:38,648 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:08:38,655 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:08:38,668 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:08:38,691 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:08:38,691 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:08:38,691 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:08:38,691 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:08:38,691 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:08:38,691 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:08:38,692 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:08:38,692 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:08:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 13:08:38,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:08:38,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 13:08:38,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:08:38,767 INFO L271 CegarLoopResult]: At program point L12-2(lines 12 15) the Hoare annotation is: true [2020-07-01 13:08:38,768 INFO L271 CegarLoopResult]: At program point L11-2(lines 11 17) the Hoare annotation is: true [2020-07-01 13:08:38,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:08:38 BasicIcfg [2020-07-01 13:08:38,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:08:38,777 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:08:38,777 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:08:38,781 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:08:38,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:08:38,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:08:38" (1/5) ... [2020-07-01 13:08:38,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ffa588e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:08:38,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:08:38" (2/5) ... [2020-07-01 13:08:38,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ffa588e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:08:38,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:08:38" (3/5) ... [2020-07-01 13:08:38,784 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ffa588e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:08:38,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:08:38" (4/5) ... [2020-07-01 13:08:38,784 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ffa588e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:08:38, skipping insertion in model container [2020-07-01 13:08:38,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:08:38,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:08:38" (5/5) ... [2020-07-01 13:08:38,786 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:08:38,816 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:08:38,816 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:08:38,816 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:08:38,816 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:08:38,816 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:08:38,817 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:08:38,817 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:08:38,817 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:08:38,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:08:38,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:08:38,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:08:38,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:08:38,843 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:08:38,843 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:08:38,843 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:08:38,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:08:38,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:08:38,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:08:38,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:08:38,844 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:08:38,844 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:08:38,849 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [34] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~j~0_1 3)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L11-2true [2020-07-01 13:08:38,850 INFO L796 eck$LassoCheckResult]: Loop: 5#L11-2true [40] L11-2-->L12-2: Formula: (< v_ULTIMATE.start_main_~i~0_9 10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 3#L12-2true [45] L12-2-->L11-2: Formula: (and (<= 12 v_ULTIMATE.start_main_~j~0_10) (= v_ULTIMATE.start_main_~i~0_11 (+ v_ULTIMATE.start_main_~i~0_12 1))) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_10, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L11-2true [2020-07-01 13:08:38,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:38,856 INFO L82 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2020-07-01 13:08:38,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:38,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695730871] [2020-07-01 13:08:38,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:38,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:08:38,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:38,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2246, now seen corresponding path program 1 times [2020-07-01 13:08:38,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:38,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798192003] [2020-07-01 13:08:38,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:38,954 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:08:38,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:38,956 INFO L82 PathProgramCache]: Analyzing trace with hash 63750, now seen corresponding path program 1 times [2020-07-01 13:08:38,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:38,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240826084] [2020-07-01 13:08:38,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:08:39,005 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 13:08:39,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240826084] [2020-07-01 13:08:39,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:08:39,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 13:08:39,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997719730] [2020-07-01 13:08:39,046 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:08:39,047 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:08:39,047 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:08:39,047 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:08:39,047 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:08:39,048 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,048 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:08:39,048 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:08:39,048 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:08:39,048 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:08:39,049 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:08:39,067 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 13:08:39,077 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 13:08:39,082 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 13:08:39,087 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 13:08:39,164 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:08:39,165 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 13:08:39,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,177 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:39,187 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:08:39,187 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 13:08:39,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:39,227 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:08:39,227 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,261 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,261 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:39,266 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:08:39,266 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=12} Honda state: {ULTIMATE.start_main_~j~0=12} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,300 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,300 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 13:08:39,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:08:39,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:39,375 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:08:39,378 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:08:39,378 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:08:39,378 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:08:39,378 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:08:39,379 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:08:39,379 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:08:39,379 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:08:39,379 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:08:39,379 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:08:39,379 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:08:39,379 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:08:39,381 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 13:08:39,386 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 13:08:39,397 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 13:08:39,403 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 13:08:39,469 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:08:39,474 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:08:39,481 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 13:08:39,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:08:39,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:08:39,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:08:39,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:08:39,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:08:39,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:08:39,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:08:39,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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 13:08:39,528 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 13:08:39,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:08:39,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:08:39,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:08:39,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:08:39,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:08:39,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:08:39,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:08:39,536 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:08:39,541 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:08:39,541 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 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 13:08:39,552 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:08:39,552 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:08:39,553 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:08:39,553 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2020-07-01 13:08:39,589 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:08:39,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:39,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:08:39,628 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:08:39,629 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:08:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:08:39,640 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:08:39,641 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:08:39,658 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 13:08:39,687 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 13:08:39,692 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 13:08:39,694 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:08:39,754 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 5 states. [2020-07-01 13:08:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-07-01 13:08:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:08:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2020-07-01 13:08:39,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:08:39,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:39,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:08:39,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:39,762 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:08:39,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:39,769 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 13:08:39,770 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:08:39,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 13:08:39,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 13:08:39,775 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 13:08:39,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 13:08:39,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:08:39,776 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 13:08:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 13:08:39,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 13:08:39,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 13:08:39,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 13:08:39,806 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 13:08:39,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:08:39,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:08:39,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:08:39,810 INFO L87 Difference]: Start difference. First operand 5 states and 8 transitions. Second operand 3 states. [2020-07-01 13:08:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:08:39,820 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-07-01 13:08:39,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:08:39,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 13:08:39,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:08:39,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 13:08:39,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 13:08:39,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 13:08:39,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 13:08:39,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:08:39,825 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:08:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 13:08:39,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-07-01 13:08:39,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 13:08:39,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 13:08:39,826 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 13:08:39,827 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 13:08:39,827 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:08:39,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-07-01 13:08:39,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:08:39,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:08:39,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:08:39,828 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:08:39,828 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 13:08:39,828 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY [34] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 0) (= v_ULTIMATE.start_main_~j~0_1 3)) InVars {} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 64#L11-2 [40] L11-2-->L12-2: Formula: (< v_ULTIMATE.start_main_~i~0_9 10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9} AuxVars[] AssignedVars[] 60#L12-2 [2020-07-01 13:08:39,829 INFO L796 eck$LassoCheckResult]: Loop: 60#L12-2 [33] L12-2-->L12-2: Formula: (and (= (+ v_ULTIMATE.start_main_~j~0_9 1) v_ULTIMATE.start_main_~j~0_7) (< v_ULTIMATE.start_main_~j~0_9 12)) InVars {ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_9} OutVars{ULTIMATE.start_main_~j~0=v_ULTIMATE.start_main_~j~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~j~0] 60#L12-2 [2020-07-01 13:08:39,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:39,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2055, now seen corresponding path program 1 times [2020-07-01 13:08:39,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:39,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117012352] [2020-07-01 13:08:39,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,838 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:08:39,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:39,838 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-07-01 13:08:39,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:39,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939955632] [2020-07-01 13:08:39,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,845 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:08:39,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:39,846 INFO L82 PathProgramCache]: Analyzing trace with hash 63738, now seen corresponding path program 1 times [2020-07-01 13:08:39,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:08:39,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613031090] [2020-07-01 13:08:39,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:08:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:08:39,855 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:08:39,865 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:08:39,865 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:08:39,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:08:39,866 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:08:39,866 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:08:39,866 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,866 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:08:39,866 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:08:39,866 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:08:39,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:08:39,867 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:08:39,868 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 13:08:39,872 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 13:08:39,878 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 13:08:39,915 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:08:39,915 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:39,930 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:08:39,930 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:39,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:08:39,966 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:08:40,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:08:40,021 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:08:40,060 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:08:40,063 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:08:40,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:08:40,063 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:08:40,063 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:08:40,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:08:40,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:08:40,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:08:40,064 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:08:40,064 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:08:40,064 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:08:40,064 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:08:40,066 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 13:08:40,074 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 13:08:40,078 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 13:08:40,122 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:08:40,122 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:08:40,130 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 13:08:40,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:08:40,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:08:40,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:08:40,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:08:40,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:08:40,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:08:40,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:08:40,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:08:40,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:08:40,142 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:08:40,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:08:40,147 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:08:40,147 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:08:40,147 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 23 Supporting invariants [] [2020-07-01 13:08:40,178 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:08:40,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:08:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:08:40,205 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:08:40,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:08:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:08:40,214 WARN L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:08:40,215 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:08:40,215 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 13:08:40,215 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 13:08:40,216 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 1 loop predicates [2020-07-01 13:08:40,216 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 13:08:40,227 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2020-07-01 13:08:40,228 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 13:08:40,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 13:08:40,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-01 13:08:40,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 13:08:40,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:40,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 13:08:40,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:40,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 13:08:40,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:08:40,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2020-07-01 13:08:40,232 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:08:40,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-07-01 13:08:40,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:08:40,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:08:40,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:08:40,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:08:40,232 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:08:40,233 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:08:40,233 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:08:40,233 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:08:40,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:08:40,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:08:40,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:08:40,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:08:40 BasicIcfg [2020-07-01 13:08:40,240 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:08:40,243 INFO L168 Benchmark]: Toolchain (without parser) took 2227.57 ms. Allocated memory was 514.9 MB in the beginning and 600.3 MB in the end (delta: 85.5 MB). Free memory was 435.8 MB in the beginning and 532.4 MB in the end (delta: -96.5 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:08:40,243 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:08:40,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.59 ms. Allocated memory was 514.9 MB in the beginning and 571.5 MB in the end (delta: 56.6 MB). Free memory was 435.3 MB in the beginning and 541.3 MB in the end (delta: -106.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 571.5 MB. Free memory was 541.3 MB in the beginning and 539.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,245 INFO L168 Benchmark]: Boogie Preprocessor took 18.68 ms. Allocated memory is still 571.5 MB. Free memory was 539.8 MB in the beginning and 538.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,246 INFO L168 Benchmark]: RCFGBuilder took 217.25 ms. Allocated memory is still 571.5 MB. Free memory was 538.3 MB in the beginning and 527.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,246 INFO L168 Benchmark]: BlockEncodingV2 took 66.87 ms. Allocated memory is still 571.5 MB. Free memory was 526.4 MB in the beginning and 522.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,247 INFO L168 Benchmark]: TraceAbstraction took 146.53 ms. Allocated memory is still 571.5 MB. Free memory was 521.2 MB in the beginning and 512.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,248 INFO L168 Benchmark]: BuchiAutomizer took 1462.78 ms. Allocated memory was 571.5 MB in the beginning and 600.3 MB in the end (delta: 28.8 MB). Free memory was 512.9 MB in the beginning and 532.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:08:40,252 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 514.9 MB. Free memory is still 456.0 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 277.59 ms. Allocated memory was 514.9 MB in the beginning and 571.5 MB in the end (delta: 56.6 MB). Free memory was 435.3 MB in the beginning and 541.3 MB in the end (delta: -106.0 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.00 ms. Allocated memory is still 571.5 MB. Free memory was 541.3 MB in the beginning and 539.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.68 ms. Allocated memory is still 571.5 MB. Free memory was 539.8 MB in the beginning and 538.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 50.3 GB. * RCFGBuilder took 217.25 ms. Allocated memory is still 571.5 MB. Free memory was 538.3 MB in the beginning and 527.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 66.87 ms. Allocated memory is still 571.5 MB. Free memory was 526.4 MB in the beginning and 522.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.53 ms. Allocated memory is still 571.5 MB. Free memory was 521.2 MB in the beginning and 512.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1462.78 ms. Allocated memory was 571.5 MB in the beginning and 600.3 MB in the end (delta: 28.8 MB). Free memory was 512.9 MB in the beginning and 532.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 9.4 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: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * j + 23 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 15 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 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 13:08:34.640 ----------------------------------------------- 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_WoMyfu/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:08:40.688 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check