/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 11:35:22,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:35:22,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:35:22,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:35:22,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:35:22,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:35:22,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:35:22,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:35:22,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:35:22,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:35:22,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:35:22,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:35:22,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:35:22,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:35:22,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:35:22,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:35:22,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:35:22,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:35:22,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:35:22,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:35:22,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:35:22,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:35:22,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:35:22,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:35:22,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:35:22,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:35:22,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:35:22,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:35:22,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:35:22,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:35:22,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:35:22,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:35:22,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:35:22,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:35:22,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:35:22,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:35:22,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:35:22,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:35:22,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:35:22,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:35:22,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:35:22,380 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:35:22,394 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:35:22,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:35:22,395 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:35:22,395 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:35:22,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:35:22,396 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:35:22,396 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:35:22,396 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:35:22,396 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:35:22,396 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:35:22,397 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:35:22,397 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:35:22,397 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:35:22,397 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:35:22,397 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:22,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:35:22,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:35:22,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:35:22,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:35:22,398 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:35:22,398 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:35:22,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:35:22,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:35:22,399 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:35:22,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:35:22,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:35:22,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:35:22,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:35:22,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:35:22,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:35:22,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:35:22,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:35:22,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:35:22,579 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:35:22,580 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:35:22,653 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_7mKaaM/tmp/02ce8324fb35427489620ae0a3caa8e8/FLAGf47ff2491 [2020-07-01 11:35:22,984 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:35:22,985 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:35:22,991 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_7mKaaM/tmp/02ce8324fb35427489620ae0a3caa8e8/FLAGf47ff2491 [2020-07-01 11:35:23,391 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_7mKaaM/tmp/02ce8324fb35427489620ae0a3caa8e8 [2020-07-01 11:35:23,402 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:35:23,403 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:35:23,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:35:23,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:35:23,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:35:23,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d89f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23, skipping insertion in model container [2020-07-01 11:35:23,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:35:23,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:35:23,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:35:23,666 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:35:23,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:35:23,697 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:35:23,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23 WrapperNode [2020-07-01 11:35:23,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:35:23,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:35:23,699 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:35:23,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:35:23,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:35:23,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:35:23,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:35:23,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:35:23,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:23,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:35:23,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:35:23,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:35:23,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:35:23,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (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 11:35:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:35:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:35:23,994 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:35:23,994 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:35:23,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:35:23 BoogieIcfgContainer [2020-07-01 11:35:23,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:35:23,998 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:35:23,998 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:35:24,000 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:35:24,001 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:35:23" (1/1) ... [2020-07-01 11:35:24,014 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 10 edges [2020-07-01 11:35:24,016 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:35:24,016 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:35:24,017 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:35:24,017 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:35:24,019 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:35:24,020 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:35:24,020 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:35:24,034 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:35:24,050 INFO L200 BlockEncoder]: SBE split 3 edges [2020-07-01 11:35:24,054 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:35:24,056 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:35:24,065 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-07-01 11:35:24,066 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-07-01 11:35:24,068 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:35:24,068 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:35:24,068 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:35:24,069 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:35:24,069 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2020-07-01 11:35:24,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:35:24 BasicIcfg [2020-07-01 11:35:24,070 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:35:24,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:35:24,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:35:24,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:35:24,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:35:23" (1/4) ... [2020-07-01 11:35:24,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3bffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (2/4) ... [2020-07-01 11:35:24,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3bffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:35:23" (3/4) ... [2020-07-01 11:35:24,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3bffc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:35:24" (4/4) ... [2020-07-01 11:35:24,078 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:35:24,089 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:35:24,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:35:24,110 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:35:24,133 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:35:24,133 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:35:24,133 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:35:24,133 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:35:24,134 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:35:24,134 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:35:24,134 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:35:24,134 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:35:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 11:35:24,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:35:24,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 11:35:24,207 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:35:24,207 INFO L268 CegarLoopResult]: For program point L20(lines 20 26) no Hoare annotation was computed. [2020-07-01 11:35:24,208 INFO L271 CegarLoopResult]: At program point L20-2(lines 17 27) the Hoare annotation is: true [2020-07-01 11:35:24,208 INFO L268 CegarLoopResult]: For program point L18(lines 18 26) no Hoare annotation was computed. [2020-07-01 11:35:24,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:35:24 BasicIcfg [2020-07-01 11:35:24,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:35:24,217 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:35:24,217 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:35:24,220 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:35:24,221 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:35:24,221 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:35:23" (1/5) ... [2020-07-01 11:35:24,222 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc20550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:35:24,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:35:23" (2/5) ... [2020-07-01 11:35:24,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc20550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:35:24,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:35:23" (3/5) ... [2020-07-01 11:35:24,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc20550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:35:24,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:35:24" (4/5) ... [2020-07-01 11:35:24,224 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2dc20550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:35:24, skipping insertion in model container [2020-07-01 11:35:24,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:35:24,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:35:24" (5/5) ... [2020-07-01 11:35:24,226 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:35:24,254 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:35:24,255 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:35:24,255 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:35:24,255 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:35:24,255 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:35:24,255 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:35:24,255 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:35:24,255 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:35:24,259 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:35:24,276 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:35:24,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:24,276 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:24,283 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:35:24,283 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:35:24,283 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:35:24,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 11:35:24,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:35:24,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:24,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:24,284 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:35:24,284 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:35:24,289 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L20-2true [2020-07-01 11:35:24,290 INFO L796 eck$LassoCheckResult]: Loop: 4#L20-2true [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 5#L18true [43] L18-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 4#L20-2true [2020-07-01 11:35:24,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:24,296 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 11:35:24,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:24,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865366525] [2020-07-01 11:35:24,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,370 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:24,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:24,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1934, now seen corresponding path program 1 times [2020-07-01 11:35:24,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:24,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206119304] [2020-07-01 11:35:24,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,390 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:24,392 INFO L82 PathProgramCache]: Analyzing trace with hash 56711, now seen corresponding path program 1 times [2020-07-01 11:35:24,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:24,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140017455] [2020-07-01 11:35:24,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:24,405 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:24,460 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:24,461 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:24,461 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:24,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:24,462 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:35:24,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:24,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:24,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:24,462 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:35:24,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:24,463 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:24,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,575 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:24,576 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 11:35:24,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:24,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:24,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:24,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} 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 11:35:24,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:24,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:24,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:24,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=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 11:35:24,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:24,665 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 11:35:24,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:35:24,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:24,739 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:35:24,741 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:24,741 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:24,741 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:24,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:24,742 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:35:24,742 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:24,742 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:24,742 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:24,742 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:35:24,742 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:24,742 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:24,744 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 11:35:24,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:24,821 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:24,827 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 11:35:24,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:24,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:24,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:24,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:24,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:24,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:24,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:24,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:24,842 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 11:35:24,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:24,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:24,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:24,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:24,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:24,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:24,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:24,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:24,881 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 11:35:24,913 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:24,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:24,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:24,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:24,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:24,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:24,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:24,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:24,921 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:35:24,925 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 11:35:24,925 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 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 11:35:24,930 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:35:24,931 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:35:24,931 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:35:24,931 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:35:24,965 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:35:24,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:25,002 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:35:25,003 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:25,014 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:25,014 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:35:25,052 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:35:25,057 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:35:25,058 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 11:35:25,104 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 13 states and 24 transitions. Complement of second has 4 states. [2020-07-01 11:35:25,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:35:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:35:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 11:35:25,109 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:35:25,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:35:25,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:35:25,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 24 transitions. [2020-07-01 11:35:25,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:35:25,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 24 transitions. [2020-07-01 11:35:25,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 11:35:25,124 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 11:35:25,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 24 transitions. [2020-07-01 11:35:25,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:35:25,125 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 24 transitions. [2020-07-01 11:35:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 24 transitions. [2020-07-01 11:35:25,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-01 11:35:25,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 11:35:25,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 23 transitions. [2020-07-01 11:35:25,155 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 11:35:25,155 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 23 transitions. [2020-07-01 11:35:25,155 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:35:25,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 23 transitions. [2020-07-01 11:35:25,156 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 11:35:25,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:25,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:25,157 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:35:25,157 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:35:25,157 INFO L794 eck$LassoCheckResult]: Stem: 50#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 51#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 53#L18 [2020-07-01 11:35:25,157 INFO L796 eck$LassoCheckResult]: Loop: 53#L18 [32] L18-->L20: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 56#L20 [45] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_4 (+ v_ULTIMATE.start_main_~y~0_5 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet4_3|) (= v_ULTIMATE.start_main_~z~0_4 |v_ULTIMATE.start_main_#t~nondet5_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_5, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_3|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_4, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_4, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_2|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0] 52#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 53#L18 [2020-07-01 11:35:25,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1828, now seen corresponding path program 1 times [2020-07-01 11:35:25,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291574597] [2020-07-01 11:35:25,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,167 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,168 INFO L82 PathProgramCache]: Analyzing trace with hash 61968, now seen corresponding path program 1 times [2020-07-01 11:35:25,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068524134] [2020-07-01 11:35:25,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash 54490125, now seen corresponding path program 1 times [2020-07-01 11:35:25,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116881371] [2020-07-01 11:35:25,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,193 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,238 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:25,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:25,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:25,239 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:25,239 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:35:25,239 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:25,239 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:25,239 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:25,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:35:25,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:25,240 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:25,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,279 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,351 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:25,351 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 11:35:25,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:25,354 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:35:25,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:35:25,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:25,483 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:35:25,486 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:25,486 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:25,486 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:25,486 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:25,486 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:35:25,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:25,487 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:25,487 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:25,487 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:35:25,487 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:25,487 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:25,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,578 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:25,579 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:25,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:25,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:25,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:25,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:25,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:25,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:25,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:25,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:25,591 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:35:25,595 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:35:25,596 INFO L444 ModelExtractionUtils]: 0 out of 3 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 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 11:35:25,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:35:25,599 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:35:25,599 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:35:25,600 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-01 11:35:25,631 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:35:25,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:25,657 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:35:25,658 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:25,666 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:25,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:35:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:25,703 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:25,704 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:25,734 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:35:25,735 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:35:25,735 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14 Second operand 4 states. [2020-07-01 11:35:25,791 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 23 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 30 states and 58 transitions. Complement of second has 8 states. [2020-07-01 11:35:25,792 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 11:35:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:35:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-01 11:35:25,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-01 11:35:25,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-01 11:35:25,795 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-01 11:35:25,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:25,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 58 transitions. [2020-07-01 11:35:25,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:35:25,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 55 transitions. [2020-07-01 11:35:25,802 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-07-01 11:35:25,802 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 11:35:25,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 55 transitions. [2020-07-01 11:35:25,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:35:25,802 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 55 transitions. [2020-07-01 11:35:25,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 55 transitions. [2020-07-01 11:35:25,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2020-07-01 11:35:25,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-01 11:35:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 45 transitions. [2020-07-01 11:35:25,806 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-07-01 11:35:25,806 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 45 transitions. [2020-07-01 11:35:25,806 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:35:25,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 45 transitions. [2020-07-01 11:35:25,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 11:35:25,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:25,807 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:25,808 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:35:25,808 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 11:35:25,808 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 144#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 149#L18 [32] L18-->L20: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 146#L20 [2020-07-01 11:35:25,808 INFO L796 eck$LassoCheckResult]: Loop: 146#L20 [36] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_4 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~z~0_5 (+ v_ULTIMATE.start_main_~z~0_6 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 154#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 157#L18 [32] L18-->L20: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 146#L20 [2020-07-01 11:35:25,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,809 INFO L82 PathProgramCache]: Analyzing trace with hash 56700, now seen corresponding path program 1 times [2020-07-01 11:35:25,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937683070] [2020-07-01 11:35:25,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash 65349, now seen corresponding path program 1 times [2020-07-01 11:35:25,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,820 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659113663] [2020-07-01 11:35:25,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,829 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:25,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1689185258, now seen corresponding path program 1 times [2020-07-01 11:35:25,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:25,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790055097] [2020-07-01 11:35:25,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:25,844 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:25,878 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:25,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:25,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:25,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:25,879 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:35:25,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:25,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:25,879 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:25,879 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:35:25,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:25,880 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:25,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:25,983 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:25,983 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:25,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:25,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:25,995 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:25,995 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:26,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 11:35:26,066 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,066 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:35:26,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:35:26,102 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,168 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:35:26,170 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:26,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:26,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:26,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:26,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:35:26,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:26,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:26,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:35:26,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:26,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:26,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,256 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:26,256 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,265 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,317 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,358 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:35:26,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:35:26,362 INFO L444 ModelExtractionUtils]: 0 out of 3 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,365 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:35:26,366 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:35:26,366 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:35:26,366 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-07-01 11:35:26,396 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:35:26,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:26,421 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:35:26,421 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:26,428 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:26,428 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:35:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:26,463 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:26,464 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:26,466 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 11:35:26,466 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 11:35:26,466 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28 Second operand 4 states. [2020-07-01 11:35:26,547 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 22 states and 45 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 51 states and 103 transitions. Complement of second has 14 states. [2020-07-01 11:35:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2020-07-01 11:35:26,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-01 11:35:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2020-07-01 11:35:26,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-01 11:35:26,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:26,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-01 11:35:26,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:26,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-01 11:35:26,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:26,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 103 transitions. [2020-07-01 11:35:26,554 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:35:26,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 45 states and 95 transitions. [2020-07-01 11:35:26,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-07-01 11:35:26,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-07-01 11:35:26,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 95 transitions. [2020-07-01 11:35:26,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:35:26,556 INFO L688 BuchiCegarLoop]: Abstraction has 45 states and 95 transitions. [2020-07-01 11:35:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 95 transitions. [2020-07-01 11:35:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-07-01 11:35:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-01 11:35:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 81 transitions. [2020-07-01 11:35:26,561 INFO L711 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-07-01 11:35:26,561 INFO L591 BuchiCegarLoop]: Abstraction has 39 states and 81 transitions. [2020-07-01 11:35:26,561 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 11:35:26,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 81 transitions. [2020-07-01 11:35:26,563 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:35:26,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:26,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:26,563 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 11:35:26,563 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:35:26,564 INFO L794 eck$LassoCheckResult]: Stem: 277#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 278#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 305#L18 [32] L18-->L20: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 286#L20 [36] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_4 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~z~0_5 (+ v_ULTIMATE.start_main_~z~0_6 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 287#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 297#L18 [44] L18-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 284#L20-2 [2020-07-01 11:35:26,564 INFO L796 eck$LassoCheckResult]: Loop: 284#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 285#L18 [43] L18-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 284#L20-2 [2020-07-01 11:35:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1689185270, now seen corresponding path program 1 times [2020-07-01 11:35:26,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:26,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739131379] [2020-07-01 11:35:26,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,578 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:26,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:26,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1934, now seen corresponding path program 2 times [2020-07-01 11:35:26,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:26,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190786525] [2020-07-01 11:35:26,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,585 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:26,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:26,585 INFO L82 PathProgramCache]: Analyzing trace with hash -190592445, now seen corresponding path program 1 times [2020-07-01 11:35:26,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:26,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031899770] [2020-07-01 11:35:26,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:26,600 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:26,620 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:26,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:26,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:26,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:26,620 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:35:26,621 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,621 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:26,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:26,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:35:26,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:26,621 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:26,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,659 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:26,659 INFO L404 LassoAnalysis]: Checking for nontermination... 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 11:35:26,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:26,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:26,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:26,738 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:26,770 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:26,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:35:26,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:26,839 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:35:26,841 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:26,841 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:26,841 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:26,841 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:26,841 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:35:26,841 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,841 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:26,842 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:26,842 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration4_Loop [2020-07-01 11:35:26,842 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:26,842 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:26,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:26,877 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:26,877 INFO L489 LassoAnalysis]: Using template 'affine'. 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 11:35:26,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,885 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 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 11:35:26,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,921 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 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,958 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 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:26,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:26,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:26,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:26,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:26,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:26,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:26,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:26,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:26,996 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:35:27,000 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:35:27,000 INFO L444 ModelExtractionUtils]: 0 out of 3 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 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,003 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:35:27,003 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:35:27,003 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:35:27,003 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:35:27,033 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:35:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:27,050 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:35:27,051 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:27,055 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:27,055 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:35:27,079 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:35:27,079 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:35:27,079 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49 Second operand 3 states. [2020-07-01 11:35:27,113 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 39 states and 81 transitions. cyclomatic complexity: 49. Second operand 3 states. Result 94 states and 177 transitions. Complement of second has 4 states. [2020-07-01 11:35:27,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:35:27,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:35:27,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 11:35:27,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:35:27,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-01 11:35:27,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 11:35:27,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 177 transitions. [2020-07-01 11:35:27,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:35:27,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 77 states and 148 transitions. [2020-07-01 11:35:27,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-07-01 11:35:27,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-07-01 11:35:27,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 148 transitions. [2020-07-01 11:35:27,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:35:27,121 INFO L688 BuchiCegarLoop]: Abstraction has 77 states and 148 transitions. [2020-07-01 11:35:27,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 148 transitions. [2020-07-01 11:35:27,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 55. [2020-07-01 11:35:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-01 11:35:27,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 110 transitions. [2020-07-01 11:35:27,128 INFO L711 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-07-01 11:35:27,128 INFO L591 BuchiCegarLoop]: Abstraction has 55 states and 110 transitions. [2020-07-01 11:35:27,128 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2020-07-01 11:35:27,128 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 110 transitions. [2020-07-01 11:35:27,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:35:27,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:35:27,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:35:27,130 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-07-01 11:35:27,130 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:35:27,130 INFO L794 eck$LassoCheckResult]: Stem: 455#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_1|, ULTIMATE.start_main_#t~nondet5=|v_ULTIMATE.start_main_#t~nondet5_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_1|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet5, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 456#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 494#L18 [32] L18-->L20: Formula: (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|) InVars {ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3] 464#L20 [36] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_4 |v_ULTIMATE.start_main_#t~nondet6_3|) (= v_ULTIMATE.start_main_~z~0_5 (+ v_ULTIMATE.start_main_~z~0_6 (- 1))) (= 0 |v_ULTIMATE.start_main_#t~nondet4_5|)) InVars {ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_3|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|} OutVars{ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_2|, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_5, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_4} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 465#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 467#L18 [43] L18-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 470#L20-2 [2020-07-01 11:35:27,130 INFO L796 eck$LassoCheckResult]: Loop: 470#L20-2 [30] L20-2-->L18: Formula: (and (< 0 v_ULTIMATE.start_main_~z~0_8) (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} AuxVars[] AssignedVars[] 472#L18 [43] L18-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~x~0_8 (- 1))) (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~x~0] 470#L20-2 [2020-07-01 11:35:27,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:27,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1689185269, now seen corresponding path program 1 times [2020-07-01 11:35:27,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:27,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208346335] [2020-07-01 11:35:27,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,143 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:27,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:27,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1934, now seen corresponding path program 3 times [2020-07-01 11:35:27,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:27,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016511332] [2020-07-01 11:35:27,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,148 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:27,149 INFO L82 PathProgramCache]: Analyzing trace with hash -190593406, now seen corresponding path program 2 times [2020-07-01 11:35:27,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:35:27,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248825182] [2020-07-01 11:35:27,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:35:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:35:27,162 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:35:27,178 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:27,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:27,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:27,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:27,179 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:35:27,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:27,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:27,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:35:27,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:27,180 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:27,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,219 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:27,220 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:27,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:27,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:27,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:27,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:27,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:27,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:27,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:27,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:35:27,297 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:35:27,329 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:35:27,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:35:27,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:35:27,398 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:35:27,399 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:35:27,399 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:35:27,400 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:35:27,400 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:35:27,400 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:35:27,400 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,400 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:35:27,400 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:35:27,400 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-07-01 11:35:27,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:35:27,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:35:27,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:35:27,440 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:35:27,440 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,443 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:27,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:27,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:27,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:27,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:27,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:27,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:27,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:27,448 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 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:27,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:27,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:27,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:27,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:27,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:27,482 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:27,482 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:27,483 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 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:27,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:27,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:27,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:27,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:27,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:27,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:27,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:27,519 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 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:35:27,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:35:27,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:35:27,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:35:27,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:35:27,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:35:27,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:35:27,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:35:27,556 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:35:27,559 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:35:27,559 INFO L444 ModelExtractionUtils]: 0 out of 3 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 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:35:27,562 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:35:27,562 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:35:27,562 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:35:27,562 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-07-01 11:35:27,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:35:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:35:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:27,609 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:35:27,609 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:35:27,613 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:35:27,614 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:35:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:35:27,631 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:35:27,631 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:35:27,631 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61 Second operand 3 states. [2020-07-01 11:35:27,663 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 55 states and 110 transitions. cyclomatic complexity: 61. Second operand 3 states. Result 138 states and 263 transitions. Complement of second has 4 states. [2020-07-01 11:35:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:35:27,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:35:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2020-07-01 11:35:27,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 2 letters. [2020-07-01 11:35:27,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 8 letters. Loop has 2 letters. [2020-07-01 11:35:27,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 6 letters. Loop has 4 letters. [2020-07-01 11:35:27,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:35:27,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 263 transitions. [2020-07-01 11:35:27,669 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:35:27,669 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 0 states and 0 transitions. [2020-07-01 11:35:27,669 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:35:27,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:35:27,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:35:27,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:35:27,670 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:35:27,670 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:35:27,670 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:35:27,670 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2020-07-01 11:35:27,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:35:27,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:35:27,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:35:27,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:35:27 BasicIcfg [2020-07-01 11:35:27,677 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:35:27,679 INFO L168 Benchmark]: Toolchain (without parser) took 4275.14 ms. Allocated memory was 649.6 MB in the beginning and 751.3 MB in the end (delta: 101.7 MB). Free memory was 562.4 MB in the beginning and 506.7 MB in the end (delta: 55.7 MB). Peak memory consumption was 157.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,679 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:35:27,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.22 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 562.4 MB in the beginning and 644.4 MB in the end (delta: -82.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,681 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 681.6 MB. Free memory was 644.4 MB in the beginning and 643.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,681 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 681.6 MB. Free memory was 643.3 MB in the beginning and 641.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,682 INFO L168 Benchmark]: RCFGBuilder took 243.54 ms. Allocated memory is still 681.6 MB. Free memory was 641.2 MB in the beginning and 627.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,682 INFO L168 Benchmark]: BlockEncodingV2 took 71.79 ms. Allocated memory is still 681.6 MB. Free memory was 626.6 MB in the beginning and 622.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,683 INFO L168 Benchmark]: TraceAbstraction took 145.38 ms. Allocated memory is still 681.6 MB. Free memory was 621.2 MB in the beginning and 612.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,683 INFO L168 Benchmark]: BuchiAutomizer took 3459.77 ms. Allocated memory was 681.6 MB in the beginning and 751.3 MB in the end (delta: 69.7 MB). Free memory was 612.6 MB in the beginning and 506.7 MB in the end (delta: 105.9 MB). Peak memory consumption was 175.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:35:27,686 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 10 edges - StatisticsResult: Encoded RCFG 4 locations, 8 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 294.22 ms. Allocated memory was 649.6 MB in the beginning and 681.6 MB in the end (delta: 32.0 MB). Free memory was 562.4 MB in the beginning and 644.4 MB in the end (delta: -82.0 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.36 ms. Allocated memory is still 681.6 MB. Free memory was 644.4 MB in the beginning and 643.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 681.6 MB. Free memory was 643.3 MB in the beginning and 641.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * RCFGBuilder took 243.54 ms. Allocated memory is still 681.6 MB. Free memory was 641.2 MB in the beginning and 627.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 71.79 ms. Allocated memory is still 681.6 MB. Free memory was 626.6 MB in the beginning and 622.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 145.38 ms. Allocated memory is still 681.6 MB. Free memory was 621.2 MB in the beginning and 612.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 3459.77 ms. Allocated memory was 681.6 MB in the beginning and 751.3 MB in the end (delta: 69.7 MB). Free memory was 612.6 MB in the beginning and 506.7 MB in the end (delta: 105.9 MB). Peak memory consumption was 175.6 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: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 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=4occurred 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 5 terminating modules (0 trivial, 0 deterministic, 5 nondeterministic). One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function z and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 55 states and ocurred in iteration 4. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 81 SDslu, 24 SDs, 0 SdLazy, 116 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 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 11:35:20.108 ----------------------------------------------- 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_7mKaaM/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:35:28.520 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check