/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 13:19:37,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:19:37,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:19:37,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:19:37,517 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:19:37,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:19:37,519 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:19:37,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:19:37,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:19:37,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:19:37,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:19:37,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:19:37,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:19:37,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:19:37,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:19:37,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:19:37,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:19:37,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:19:37,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:19:37,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:19:37,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:19:37,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:19:37,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:19:37,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:19:37,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:19:37,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:19:37,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:19:37,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:19:37,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:19:37,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:19:37,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:19:37,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:19:37,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:19:37,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:19:37,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:19:37,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:19:37,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:19:37,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:19:37,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:19:37,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:19:37,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:19:37,548 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 13:19:37,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:19:37,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:19:37,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:19:37,563 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:19:37,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:19:37,564 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:19:37,564 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:19:37,564 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:19:37,564 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:19:37,564 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:19:37,565 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:19:37,565 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:19:37,565 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:19:37,565 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:19:37,565 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:37,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:19:37,566 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:19:37,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:19:37,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:19:37,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:19:37,566 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:19:37,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:19:37,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:19:37,567 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:19:37,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:19:37,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:19:37,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:19:37,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:19:37,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:19:37,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:19:37,746 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:19:37,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:19:37,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:19:37,751 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:19:37,751 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:19:37,864 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_JulYNx/tmp/39f7e407da5049b2b1861c60516237bd/FLAG010babba7 [2020-07-01 13:19:38,191 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:19:38,192 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 13:19:38,198 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_JulYNx/tmp/39f7e407da5049b2b1861c60516237bd/FLAG010babba7 [2020-07-01 13:19:38,595 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_JulYNx/tmp/39f7e407da5049b2b1861c60516237bd [2020-07-01 13:19:38,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:19:38,607 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:19:38,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:19:38,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:19:38,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:19:38,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7719be62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38, skipping insertion in model container [2020-07-01 13:19:38,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:19:38,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:19:38,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:19:38,879 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:19:38,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:19:38,926 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:19:38,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38 WrapperNode [2020-07-01 13:19:38,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:19:38,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:19:38,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:19:38,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:19:38,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:19:38,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:19:38,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:19:38,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:19:38,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... [2020-07-01 13:19:38,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:19:38,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:19:38,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:19:38,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:19:38,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:19:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:19:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:19:39,214 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:19:39,214 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:19:39,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:19:39 BoogieIcfgContainer [2020-07-01 13:19:39,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:19:39,219 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:19:39,219 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:19:39,221 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:19:39,222 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:19:39" (1/1) ... [2020-07-01 13:19:39,234 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 13:19:39,236 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:19:39,236 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:19:39,237 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:19:39,237 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:19:39,239 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:19:39,240 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:19:39,240 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:19:39,254 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:19:39,267 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 13:19:39,271 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:19:39,273 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:19:39,284 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 13:19:39,286 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 13:19:39,288 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:19:39,288 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:19:39,294 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 13:19:39,294 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:19:39,295 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:19:39,295 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:19:39,295 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:19:39,295 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:19:39,296 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 13:19:39,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:19:39 BasicIcfg [2020-07-01 13:19:39,296 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:19:39,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:19:39,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:19:39,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:19:39,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:19:38" (1/4) ... [2020-07-01 13:19:39,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7ff24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (2/4) ... [2020-07-01 13:19:39,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7ff24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:19:39" (3/4) ... [2020-07-01 13:19:39,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff7ff24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:19:39" (4/4) ... [2020-07-01 13:19:39,305 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:19:39,315 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:19:39,322 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:19:39,336 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:19:39,358 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:19:39,359 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:19:39,359 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:19:39,359 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:19:39,359 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:19:39,359 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:19:39,359 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:19:39,360 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:19:39,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 13:19:39,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:19:39,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 13:19:39,433 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:19:39,433 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-07-01 13:19:39,433 INFO L271 CegarLoopResult]: At program point L20-2(lines 19 25) the Hoare annotation is: true [2020-07-01 13:19:39,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:19:39 BasicIcfg [2020-07-01 13:19:39,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:19:39,443 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:19:39,443 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:19:39,446 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:19:39,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:19:39,447 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:19:38" (1/5) ... [2020-07-01 13:19:39,448 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52baa85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,448 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:19:39,448 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:19:38" (2/5) ... [2020-07-01 13:19:39,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52baa85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:19:39,449 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:19:39" (3/5) ... [2020-07-01 13:19:39,449 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52baa85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,449 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:19:39,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:19:39" (4/5) ... [2020-07-01 13:19:39,450 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52baa85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:19:39, skipping insertion in model container [2020-07-01 13:19:39,450 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:19:39,450 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:19:39" (5/5) ... [2020-07-01 13:19:39,452 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:19:39,482 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:19:39,482 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:19:39,483 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:19:39,483 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:19:39,483 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:19:39,483 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:19:39,483 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:19:39,483 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:19:39,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:19:39,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:19:39,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:19:39,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:19:39,509 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:19:39,509 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:19:39,509 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:19:39,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 13:19:39,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:19:39,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:19:39,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:19:39,510 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:19:39,510 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:19:39,515 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11) (< 0 v_ULTIMATE.start_main_~m~0_10)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 4#L20-2true [2020-07-01 13:19:39,516 INFO L796 eck$LassoCheckResult]: Loop: 4#L20-2true [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 5#L20true [39] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 (+ v_ULTIMATE.start_main_~i~0_2 (- 1))) (< v_ULTIMATE.start_main_~i~0_2 v_ULTIMATE.start_main_~m~0_1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L20-2true [2020-07-01 13:19:39,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:39,522 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-07-01 13:19:39,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:39,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787918231] [2020-07-01 13:19:39,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:39,611 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:39,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:39,613 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-07-01 13:19:39,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:39,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892538906] [2020-07-01 13:19:39,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:39,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:39,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:39,625 INFO L82 PathProgramCache]: Analyzing trace with hash 77105, now seen corresponding path program 1 times [2020-07-01 13:19:39,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:39,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144842146] [2020-07-01 13:19:39,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:39,680 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 13:19:39,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144842146] [2020-07-01 13:19:39,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 13:19:39,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-01 13:19:39,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027389486] [2020-07-01 13:19:39,723 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:39,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:39,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:39,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:39,724 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:19:39,724 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:39,724 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:39,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:39,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:19:39,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:39,725 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:39,744 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 13:19:39,753 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 13:19:39,763 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 13:19:39,838 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:39,839 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 13:19:39,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:39,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:39,856 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:39,856 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/sandbox2/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 13:19:39,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:39,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:39,894 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:39,894 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/sandbox2/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 13:19:39,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:39,927 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 13:19:39,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:19:39,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:40,003 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:19:40,006 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:40,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:40,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:40,006 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:40,006 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:19:40,006 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:40,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:40,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:40,007 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:19:40,007 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:40,007 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:40,009 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 13:19:40,014 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 13:19:40,017 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 13:19:40,076 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:40,082 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,087 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 13:19:40,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:40,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:40,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:40,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:40,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:19:40,097 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:19:40,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,136 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 13:19:40,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:40,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:40,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:40,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:40,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:19:40,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:19:40,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,186 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 13:19:40,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:40,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:19:40,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:40,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:40,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:40,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:19:40,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:19:40,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:19:40,201 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:19:40,202 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:19:40,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:19:40,207 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:19:40,208 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:19:40,242 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:19:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:40,273 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:19:40,274 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:40,282 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:19:40,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:40,293 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 13:19:40,318 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 13:19:40,324 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 13:19:40,325 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 13:19:40,379 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 5 states. [2020-07-01 13:19:40,380 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 13:19:40,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:19:40,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-07-01 13:19:40,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 13:19:40,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:19:40,386 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,386 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 13:19:40,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 13:19:40,394 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:19:40,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 13:19:40,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 13:19:40,399 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 13:19:40,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 13:19:40,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:19:40,400 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:19:40,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 13:19:40,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 13:19:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 13:19:40,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 13:19:40,428 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 13:19:40,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 13:19:40,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 13:19:40,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 13:19:40,432 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-07-01 13:19:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 13:19:40,444 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2020-07-01 13:19:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 13:19:40,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2020-07-01 13:19:40,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:19:40,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 6 transitions. [2020-07-01 13:19:40,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 13:19:40,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 13:19:40,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-07-01 13:19:40,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:19:40,448 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-07-01 13:19:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-07-01 13:19:40,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-01 13:19:40,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 13:19:40,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-07-01 13:19:40,449 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-07-01 13:19:40,449 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-07-01 13:19:40,450 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 13:19:40,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-07-01 13:19:40,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 13:19:40,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:19:40,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:19:40,451 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 13:19:40,451 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:19:40,451 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11) (< 0 v_ULTIMATE.start_main_~m~0_10)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 63#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 66#L20 [43] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 (* v_ULTIMATE.start_main_~m~0_7 (- 1)))) (>= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 64#L20-2 [2020-07-01 13:19:40,452 INFO L796 eck$LassoCheckResult]: Loop: 64#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 65#L20 [39] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_1 (+ v_ULTIMATE.start_main_~i~0_2 (- 1))) (< v_ULTIMATE.start_main_~i~0_2 v_ULTIMATE.start_main_~m~0_1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 64#L20-2 [2020-07-01 13:19:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,452 INFO L82 PathProgramCache]: Analyzing trace with hash 77109, now seen corresponding path program 1 times [2020-07-01 13:19:40,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298361248] [2020-07-01 13:19:40,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:40,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2020-07-01 13:19:40,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309476709] [2020-07-01 13:19:40,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,472 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:40,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,473 INFO L82 PathProgramCache]: Analyzing trace with hash 74102935, now seen corresponding path program 1 times [2020-07-01 13:19:40,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574682460] [2020-07-01 13:19:40,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,486 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:40,501 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:40,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:40,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:40,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:40,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:19:40,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:40,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:40,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:40,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:19:40,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:40,502 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:40,504 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 13:19:40,508 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 13:19:40,517 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 13:19:40,559 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:40,560 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/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 13:19:40,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:40,565 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:40,570 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:40,570 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/sandbox2/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 13:19:40,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:40,606 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:19:40,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:40,690 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:19:40,692 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:40,692 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:40,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:40,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:40,693 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:19:40,693 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:40,693 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:40,693 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:40,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 13:19:40,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:40,694 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:40,695 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 13:19:40,700 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 13:19:40,710 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 13:19:40,764 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:40,764 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,767 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 13:19:40,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:40,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:40,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:40,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:40,774 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:19:40,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:19:40,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,815 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 13:19:40,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:40,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:19:40,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:40,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:40,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:40,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:19:40,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:19:40,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:19:40,832 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 13:19:40,833 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/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 13:19:40,841 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:19:40,842 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 13:19:40,842 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:19:40,842 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 13:19:40,872 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 13:19:40,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:40,893 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 13:19:40,894 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:40,901 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 13:19:40,901 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:40,914 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 13:19:40,926 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 13:19:40,927 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 13:19:40,927 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-07-01 13:19:40,943 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 7 states and 9 transitions. Complement of second has 4 states. [2020-07-01 13:19:40,944 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 13:19:40,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 13:19:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 13:19:40,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 13:19:40,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 13:19:40,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,945 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 13:19:40,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:40,947 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2020-07-01 13:19:40,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:19:40,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 9 transitions. [2020-07-01 13:19:40,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 13:19:40,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 13:19:40,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-07-01 13:19:40,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 13:19:40,948 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-01 13:19:40,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-07-01 13:19:40,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-07-01 13:19:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-01 13:19:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-07-01 13:19:40,950 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-01 13:19:40,951 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-07-01 13:19:40,951 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 13:19:40,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-07-01 13:19:40,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 13:19:40,951 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:19:40,951 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:19:40,952 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 13:19:40,952 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 13:19:40,952 INFO L794 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11) (< 0 v_ULTIMATE.start_main_~m~0_10)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 111#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 112#L20 [2020-07-01 13:19:40,952 INFO L796 eck$LassoCheckResult]: Loop: 112#L20 [43] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 (* v_ULTIMATE.start_main_~m~0_7 (- 1)))) (>= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 115#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 112#L20 [2020-07-01 13:19:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 1 times [2020-07-01 13:19:40,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67013709] [2020-07-01 13:19:40,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,962 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash 2331, now seen corresponding path program 1 times [2020-07-01 13:19:40,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010180226] [2020-07-01 13:19:40,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,971 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:40,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:40,971 INFO L82 PathProgramCache]: Analyzing trace with hash 2390416, now seen corresponding path program 2 times [2020-07-01 13:19:40,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:19:40,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119457044] [2020-07-01 13:19:40,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:19:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:19:40,983 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:19:41,034 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:41,034 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:41,034 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:41,034 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:41,035 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:19:41,035 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,035 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:41,035 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:41,035 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 13:19:41,035 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:41,036 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:41,038 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 13:19:41,044 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 13:19:41,048 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 13:19:41,053 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 13:19:41,057 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 13:19:41,062 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 13:19:41,153 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:41,154 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,159 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,164 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:41,164 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/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:41,202 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/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,235 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,235 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,239 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:41,240 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,277 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:41,277 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/sandbox2/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,315 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:19:41,315 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,349 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:19:41,349 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:19:41,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:19:41,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:19:41,628 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 13:19:41,630 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:19:41,631 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:19:41,631 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:19:41,631 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:19:41,631 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 13:19:41,631 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,631 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:19:41,631 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:19:41,631 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 13:19:41,632 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:19:41,632 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:19:41,633 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 13:19:41,637 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 13:19:41,639 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 13:19:41,642 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 13:19:41,645 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 13:19:41,657 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 13:19:41,772 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:19:41,772 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,775 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 13:19:41,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:41,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:19:41,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:41,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:41,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:41,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:19:41,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:19:41,780 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,812 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 13:19:41,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:41,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:19:41,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:41,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:41,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:41,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:19:41,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:19:41,817 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,848 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 13:19:41,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:41,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 13:19:41,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:41,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:41,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:41,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 13:19:41,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 13:19:41,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,884 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 13:19:41,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:41,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:41,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:41,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:41,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:19:41,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:19:41,893 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,925 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 13:19:41,927 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 13:19:41,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 13:19:41,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 13:19:41,928 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 13:19:41,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 13:19:41,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 13:19:41,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 13:19:41,948 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-07-01 13:19:41,948 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 13:19:41,951 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 13:19:41,954 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-07-01 13:19:41,955 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 13:19:41,955 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2020-07-01 13:19:41,987 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-07-01 13:19:42,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:19:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:42,035 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-01 13:19:42,035 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 13:19:42,046 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-01 13:19:42,046 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 13:19:42,072 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 13:19:42,096 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 13:19:42,097 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-07-01 13:19:42,097 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-07-01 13:19:42,135 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 8 states. [2020-07-01 13:19:42,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 13:19:42,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 13:19:42,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-07-01 13:19:42,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 13:19:42,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:42,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-07-01 13:19:42,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:42,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-07-01 13:19:42,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 13:19:42,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2020-07-01 13:19:42,140 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:19:42,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-07-01 13:19:42,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 13:19:42,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 13:19:42,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 13:19:42,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 13:19:42,140 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:19:42,141 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:19:42,141 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 13:19:42,141 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 13:19:42,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 13:19:42,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 13:19:42,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 13:19:42,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:19:42 BasicIcfg [2020-07-01 13:19:42,147 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:19:42,150 INFO L168 Benchmark]: Toolchain (without parser) took 3541.74 ms. Allocated memory was 649.6 MB in the beginning and 746.1 MB in the end (delta: 96.5 MB). Free memory was 557.6 MB in the beginning and 636.3 MB in the end (delta: -78.8 MB). Peak memory consumption was 17.7 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,150 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:19:42,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.03 ms. Allocated memory was 649.6 MB in the beginning and 667.9 MB in the end (delta: 18.4 MB). Free memory was 556.2 MB in the beginning and 632.4 MB in the end (delta: -76.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 667.9 MB. Free memory was 632.4 MB in the beginning and 631.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,152 INFO L168 Benchmark]: Boogie Preprocessor took 20.15 ms. Allocated memory is still 667.9 MB. Free memory was 631.1 MB in the beginning and 629.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,152 INFO L168 Benchmark]: RCFGBuilder took 234.87 ms. Allocated memory is still 667.9 MB. Free memory was 629.7 MB in the beginning and 614.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,153 INFO L168 Benchmark]: BlockEncodingV2 took 77.18 ms. Allocated memory is still 667.9 MB. Free memory was 614.4 MB in the beginning and 609.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,153 INFO L168 Benchmark]: TraceAbstraction took 144.62 ms. Allocated memory is still 667.9 MB. Free memory was 607.6 MB in the beginning and 599.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,154 INFO L168 Benchmark]: BuchiAutomizer took 2704.55 ms. Allocated memory was 667.9 MB in the beginning and 746.1 MB in the end (delta: 78.1 MB). Free memory was 599.5 MB in the beginning and 636.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 41.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:19:42,157 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 318.03 ms. Allocated memory was 649.6 MB in the beginning and 667.9 MB in the end (delta: 18.4 MB). Free memory was 556.2 MB in the beginning and 632.4 MB in the end (delta: -76.2 MB). Peak memory consumption was 28.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 667.9 MB. Free memory was 632.4 MB in the beginning and 631.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.15 ms. Allocated memory is still 667.9 MB. Free memory was 631.1 MB in the beginning and 629.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 234.87 ms. Allocated memory is still 667.9 MB. Free memory was 629.7 MB in the beginning and 614.4 MB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 77.18 ms. Allocated memory is still 667.9 MB. Free memory was 614.4 MB in the beginning and 609.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.62 ms. Allocated memory is still 667.9 MB. Free memory was 607.6 MB in the beginning and 599.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2704.55 ms. Allocated memory was 667.9 MB in the beginning and 746.1 MB in the end (delta: 78.1 MB). Free memory was 599.5 MB in the beginning and 636.3 MB in the end (delta: -36.8 MB). Peak memory consumption was 41.3 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: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i + -1 * m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 21 SDslu, 0 SDs, 0 SdLazy, 33 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf97 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf107 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 13:19:35.314 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_JulYNx/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:19:42.590 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check