/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 12:06:06,952 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:06:06,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:06:06,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:06:06,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:06:06,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:06:06,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:06:06,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:06:06,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:06:06,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:06:06,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:06:06,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:06:06,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:06:06,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:06:06,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:06:06,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:06:06,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:06:06,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:06:06,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:06:06,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:06:06,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:06:06,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:06:06,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:06:06,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:06:06,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:06:06,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:06:06,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:06:06,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:06:06,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:06:06,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:06:06,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:06:06,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:06:06,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:06:06,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:06:06,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:06:06,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:06:06,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:06:06,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:06:06,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:06:06,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:06:06,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:06:06,996 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:06:07,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:06:07,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:06:07,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:06:07,012 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:06:07,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:06:07,012 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:07,012 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:06:07,013 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:06:07,013 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:06:07,013 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:06:07,013 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:06:07,013 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:06:07,013 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:07,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:06:07,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:06:07,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:06:07,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:06:07,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:06:07,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:06:07,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:06:07,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:06:07,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:06:07,199 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:06:07,199 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:06:07,200 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:06:07,267 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_1aPlQC/tmp/9c3e433cad544507819af52d73471ac0/FLAGf44b56b76 [2020-07-01 12:06:07,594 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:06:07,594 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:06:07,601 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_1aPlQC/tmp/9c3e433cad544507819af52d73471ac0/FLAGf44b56b76 [2020-07-01 12:06:08,005 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_1aPlQC/tmp/9c3e433cad544507819af52d73471ac0 [2020-07-01 12:06:08,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:06:08,017 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:06:08,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:06:08,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:06:08,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ddb6f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:06:08,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:06:08,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,284 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:06:08,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:06:08,316 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:06:08,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08 WrapperNode [2020-07-01 12:06:08,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:06:08,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:06:08,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:06:08,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:06:08,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:06:08,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:06:08,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:06:08,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:06:08,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:06:08,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:06:08,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:06:08,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:06:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:06:08,609 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:06:08,610 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-07-01 12:06:08,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08 BoogieIcfgContainer [2020-07-01 12:06:08,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:06:08,614 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:06:08,614 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:06:08,617 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:06:08,618 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (1/1) ... [2020-07-01 12:06:08,630 INFO L313 BlockEncoder]: Initial Icfg 10 locations, 15 edges [2020-07-01 12:06:08,632 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:06:08,632 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:06:08,633 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:06:08,633 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:06:08,635 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:06:08,636 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:06:08,636 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:06:08,650 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:06:08,657 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 12:06:08,663 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,664 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,675 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 12:06:08,677 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 12:06:08,679 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,679 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,684 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 12:06:08,685 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:06:08,685 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:06:08,686 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:06:08,686 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:06:08,686 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:06:08,686 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 7 edges [2020-07-01 12:06:08,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,687 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:06:08,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:06:08,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:06:08,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:06:08,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:06:08" (1/4) ... [2020-07-01 12:06:08,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e7a73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/4) ... [2020-07-01 12:06:08,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e7a73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/4) ... [2020-07-01 12:06:08,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e7a73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/4) ... [2020-07-01 12:06:08,696 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:06:08,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:06:08,730 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:06:08,753 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,753 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:06:08,753 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,753 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,754 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,754 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:06:08,754 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,754 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:06:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-07-01 12:06:08,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:06:08,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-07-01 12:06:08,833 INFO L271 CegarLoopResult]: At program point L19-2(lines 19 27) the Hoare annotation is: true [2020-07-01 12:06:08,833 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:06:08,834 INFO L268 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2020-07-01 12:06:08,834 INFO L271 CegarLoopResult]: At program point L22-2(lines 22 24) the Hoare annotation is: true [2020-07-01 12:06:08,834 INFO L268 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-07-01 12:06:08,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08 BasicIcfg [2020-07-01 12:06:08,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:06:08,844 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:06:08,844 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:06:08,847 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:06:08,848 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,848 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:06:08" (1/5) ... [2020-07-01 12:06:08,849 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d0122d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,849 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,849 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:06:08" (2/5) ... [2020-07-01 12:06:08,850 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d0122d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,850 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,850 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:06:08" (3/5) ... [2020-07-01 12:06:08,850 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d0122d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:06:08" (4/5) ... [2020-07-01 12:06:08,851 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1d0122d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:08, skipping insertion in model container [2020-07-01 12:06:08,851 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:06:08,851 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:06:08" (5/5) ... [2020-07-01 12:06:08,853 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:06:08,880 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:06:08,881 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:06:08,881 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:06:08,881 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:06:08,881 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:06:08,881 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:06:08,881 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:06:08,881 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:06:08,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:06:08,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:08,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,907 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,907 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:06:08,908 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:06:08,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-07-01 12:06:08,908 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 12:06:08,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:08,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:08,909 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:06:08,909 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:06:08,914 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [64] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~n~0_6 v_ULTIMATE.start_main_~x~0_16) (<= 0 v_ULTIMATE.start_main_~x~0_16)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 5#L19-2true [2020-07-01 12:06:08,914 INFO L796 eck$LassoCheckResult]: Loop: 5#L19-2true [48] L19-2-->L21: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 3#L21true [60] L21-->L21-1: Formula: (>= v_ULTIMATE.start_main_~y~0_11 v_ULTIMATE.start_main_~x~0_15) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_15} AuxVars[] AssignedVars[] 7#L21-1true [57] L21-1-->L19-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 (+ v_ULTIMATE.start_main_~x~0_2 (- 1))) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_2} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 5#L19-2true [2020-07-01 12:06:08,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:08,921 INFO L82 PathProgramCache]: Analyzing trace with hash 95, now seen corresponding path program 1 times [2020-07-01 12:06:08,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:08,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417402738] [2020-07-01 12:06:08,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,002 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,004 INFO L82 PathProgramCache]: Analyzing trace with hash 77836, now seen corresponding path program 1 times [2020-07-01 12:06:09,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426554902] [2020-07-01 12:06:09,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,017 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,019 INFO L82 PathProgramCache]: Analyzing trace with hash 2878190, now seen corresponding path program 1 times [2020-07-01 12:06:09,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178895451] [2020-07-01 12:06:09,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,077 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,078 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:09,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,079 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,079 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,079 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,098 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 12:06:09,108 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 12:06:09,113 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 12:06:09,210 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,211 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 12:06:09,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,229 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:09,229 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 12:06:09,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,265 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,269 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:09,270 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 12:06:09,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:09,304 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 12:06:09,342 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:09,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:09,383 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:09,386 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:09,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:06:09,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,387 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,389 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 12:06:09,401 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 12:06:09,405 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 12:06:09,490 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:09,496 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:09,502 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 12:06:09,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:09,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:09,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:09,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:09,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:09,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:09,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:09,515 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:09,520 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 12:06:09,520 INFO L444 ModelExtractionUtils]: 1 out of 4 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 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 12:06:09,527 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:09,528 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:06:09,529 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:09,530 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 12:06:09,564 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:06:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,612 INFO L264 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,613 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,627 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,627 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:06:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:09,689 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:09,690 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:09,734 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:06:09,739 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 3 loop predicates [2020-07-01 12:06:09,741 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 3 states. [2020-07-01 12:06:09,812 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 3 states. Result 9 states and 14 transitions. Complement of second has 5 states. [2020-07-01 12:06:09,812 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 12:06:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:06:09,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2020-07-01 12:06:09,817 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:06:09,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:06:09,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:06:09,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:09,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 14 transitions. [2020-07-01 12:06:09,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:06:09,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 12 transitions. [2020-07-01 12:06:09,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 12:06:09,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 12:06:09,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 12 transitions. [2020-07-01 12:06:09,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:06:09,833 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 12:06:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 12 transitions. [2020-07-01 12:06:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-01 12:06:09,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-01 12:06:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2020-07-01 12:06:09,862 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 12:06:09,862 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2020-07-01 12:06:09,862 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:06:09,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2020-07-01 12:06:09,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 12:06:09,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:06:09,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:06:09,863 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:06:09,864 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 12:06:09,864 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY [64] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~n~0_6 v_ULTIMATE.start_main_~x~0_16) (<= 0 v_ULTIMATE.start_main_~x~0_16)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_6, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_12, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_16} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 69#L19-2 [48] L19-2-->L21: Formula: (and (<= 0 v_ULTIMATE.start_main_~x~0_11) (= v_ULTIMATE.start_main_~y~0_6 1)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 63#L21 [43] L21-->L22-2: Formula: (< v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_12) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_12} AuxVars[] AssignedVars[] 64#L22-2 [2020-07-01 12:06:09,864 INFO L796 eck$LassoCheckResult]: Loop: 64#L22-2 [56] L22-2-->L22-2: Formula: (and (< v_ULTIMATE.start_main_~y~0_10 v_ULTIMATE.start_main_~x~0_14) (= v_ULTIMATE.start_main_~y~0_9 (* v_ULTIMATE.start_main_~y~0_10 2))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_14} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 64#L22-2 [2020-07-01 12:06:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash 92826, now seen corresponding path program 1 times [2020-07-01 12:06:09,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427348852] [2020-07-01 12:06:09,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,875 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,876 INFO L82 PathProgramCache]: Analyzing trace with hash 87, now seen corresponding path program 1 times [2020-07-01 12:06:09,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65480086] [2020-07-01 12:06:09,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:09,883 INFO L82 PathProgramCache]: Analyzing trace with hash 2877662, now seen corresponding path program 1 times [2020-07-01 12:06:09,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:06:09,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386398051] [2020-07-01 12:06:09,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:06:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:06:09,894 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:06:09,936 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:09,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:09,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:09,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:09,936 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:06:09,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:09,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:09,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:09,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 12:06:09,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:09,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:09,939 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 12:06:09,943 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 12:06:09,946 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 12:06:09,951 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 12:06:09,954 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 12:06:09,957 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 12:06:10,049 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:10,049 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,060 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,060 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 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,100 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,101 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 12:06:10,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,145 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,145 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=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) [2020-07-01 12:06:10,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,180 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 12:06:10,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,219 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:06:10,224 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:06:10,260 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:06:10,303 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:06:10,304 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:06:10,424 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:06:10,427 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:06:10,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:06:10,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:06:10,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:06:10,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:06:10,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:06:10,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:06:10,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Lasso [2020-07-01 12:06:10,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:06:10,428 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:06:10,430 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 12:06:10,441 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 12:06:10,445 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 12:06:10,447 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 12:06:10,450 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 12:06:10,463 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 12:06:10,548 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:06:10,548 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,555 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 12:06:10,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:06:10,561 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:06:10,566 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,601 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 12:06:10,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:10,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:10,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:10,607 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 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,646 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 12:06:10,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:10,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:10,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:10,652 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 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,690 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 12:06:10,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:06:10,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:06:10,695 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:06:10,696 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,732 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 12:06:10,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:06:10,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:06:10,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:06:10,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:06:10,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:06:10,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:06:10,754 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:06:10,769 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-07-01 12:06:10,769 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:06:10,775 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:06:10,779 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-07-01 12:06:10,779 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:06:10,780 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~x~0 >= 0, 1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2020-07-01 12:06:10,816 INFO L297 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2020-07-01 12:06:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:06:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:10,861 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:06:10,862 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:06:10,892 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:06:10,892 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:06:10,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:06:10,929 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:06:10,930 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 3 loop predicates [2020-07-01 12:06:10,930 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-07-01 12:06:11,109 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 34 states and 49 transitions. Complement of second has 14 states. [2020-07-01 12:06:11,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:06:11,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 12:06:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2020-07-01 12:06:11,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 12:06:11,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:11,112 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 4 letters. Loop has 1 letters. [2020-07-01 12:06:11,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:11,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:06:11,113 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:06:11,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 49 transitions. [2020-07-01 12:06:11,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:11,116 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-07-01 12:06:11,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 12:06:11,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 12:06:11,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 12:06:11,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 12:06:11,117 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:11,117 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:11,117 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 12:06:11,117 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:06:11,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 12:06:11,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 12:06:11,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 12:06:11,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:06:11 BasicIcfg [2020-07-01 12:06:11,124 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:06:11,127 INFO L168 Benchmark]: Toolchain (without parser) took 3108.53 ms. Allocated memory was 649.6 MB in the beginning and 755.5 MB in the end (delta: 105.9 MB). Free memory was 562.7 MB in the beginning and 695.4 MB in the end (delta: -132.8 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:06:11,127 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:06:11,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.16 ms. Allocated memory was 649.6 MB in the beginning and 688.4 MB in the end (delta: 38.8 MB). Free memory was 562.7 MB in the beginning and 651.8 MB in the end (delta: -89.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 688.4 MB. Free memory was 651.8 MB in the beginning and 650.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,129 INFO L168 Benchmark]: Boogie Preprocessor took 20.47 ms. Allocated memory is still 688.4 MB. Free memory was 650.4 MB in the beginning and 649.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,130 INFO L168 Benchmark]: RCFGBuilder took 240.54 ms. Allocated memory is still 688.4 MB. Free memory was 649.1 MB in the beginning and 633.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,131 INFO L168 Benchmark]: BlockEncodingV2 took 73.22 ms. Allocated memory is still 688.4 MB. Free memory was 633.5 MB in the beginning and 628.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,131 INFO L168 Benchmark]: TraceAbstraction took 154.74 ms. Allocated memory is still 688.4 MB. Free memory was 628.1 MB in the beginning and 618.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:06:11,132 INFO L168 Benchmark]: BuchiAutomizer took 2280.47 ms. Allocated memory was 688.4 MB in the beginning and 755.5 MB in the end (delta: 67.1 MB). Free memory was 618.6 MB in the beginning and 695.4 MB in the end (delta: -76.8 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:06:11,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 10 locations, 15 edges - StatisticsResult: Encoded RCFG 5 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 298.16 ms. Allocated memory was 649.6 MB in the beginning and 688.4 MB in the end (delta: 38.8 MB). Free memory was 562.7 MB in the beginning and 651.8 MB in the end (delta: -89.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 688.4 MB. Free memory was 651.8 MB in the beginning and 650.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.47 ms. Allocated memory is still 688.4 MB. Free memory was 650.4 MB in the beginning and 649.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 240.54 ms. Allocated memory is still 688.4 MB. Free memory was 649.1 MB in the beginning and 633.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 73.22 ms. Allocated memory is still 688.4 MB. Free memory was 633.5 MB in the beginning and 628.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 154.74 ms. Allocated memory is still 688.4 MB. Free memory was 628.1 MB in the beginning and 618.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2280.47 ms. Allocated memory was 688.4 MB in the beginning and 755.5 MB in the end (delta: 67.1 MB). Free memory was 618.6 MB in the beginning and 695.4 MB in the end (delta: -76.8 MB). There was no memory consumed. 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y + n and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 40 SDslu, 0 SDs, 0 SdLazy, 43 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax169 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf91 smp100 dnf100 smp100 tf104 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 12:06:04.712 ----------------------------------------------- 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_1aPlQC/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:06:11.369 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check