/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 10:52:21,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 10:52:21,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 10:52:21,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 10:52:21,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 10:52:21,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 10:52:21,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 10:52:21,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 10:52:21,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 10:52:21,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 10:52:21,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 10:52:21,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 10:52:21,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 10:52:21,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 10:52:21,465 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 10:52:21,466 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 10:52:21,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 10:52:21,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 10:52:21,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 10:52:21,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 10:52:21,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 10:52:21,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 10:52:21,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 10:52:21,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 10:52:21,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 10:52:21,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 10:52:21,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 10:52:21,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 10:52:21,479 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 10:52:21,480 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 10:52:21,480 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 10:52:21,481 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 10:52:21,482 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 10:52:21,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 10:52:21,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 10:52:21,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 10:52:21,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 10:52:21,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 10:52:21,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 10:52:21,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 10:52:21,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 10:52:21,486 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 10:52:21,500 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 10:52:21,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 10:52:21,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 10:52:21,502 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 10:52:21,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 10:52:21,502 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:52:21,502 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 10:52:21,503 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 10:52:21,503 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 10:52:21,503 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 10:52:21,503 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 10:52:21,503 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 10:52:21,504 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 10:52:21,504 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 10:52:21,504 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:21,504 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 10:52:21,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 10:52:21,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 10:52:21,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 10:52:21,505 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 10:52:21,505 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 10:52:21,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 10:52:21,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 10:52:21,505 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 10:52:21,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 10:52:21,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 10:52:21,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 10:52:21,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 10:52:21,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 10:52:21,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 10:52:21,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 10:52:21,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 10:52:21,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 10:52:21,687 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 10:52:21,688 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:52:21,754 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_loWxGJ/tmp/edfc9a9d1c00425ab18844ac39a1285f/FLAGfdf707913 [2020-07-01 10:52:22,091 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 10:52:22,092 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 10:52:22,098 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_loWxGJ/tmp/edfc9a9d1c00425ab18844ac39a1285f/FLAGfdf707913 [2020-07-01 10:52:22,618 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_loWxGJ/tmp/edfc9a9d1c00425ab18844ac39a1285f [2020-07-01 10:52:22,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 10:52:22,631 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 10:52:22,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 10:52:22,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 10:52:22,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 10:52:22,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8faa03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22, skipping insertion in model container [2020-07-01 10:52:22,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 10:52:22,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 10:52:22,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:52:22,894 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 10:52:22,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 10:52:22,925 INFO L208 MainTranslator]: Completed translation [2020-07-01 10:52:22,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22 WrapperNode [2020-07-01 10:52:22,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 10:52:22,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 10:52:22,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 10:52:22,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 10:52:22,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 10:52:22,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 10:52:22,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 10:52:22,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 10:52:22,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (1/1) ... [2020-07-01 10:52:22,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 10:52:22,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 10:52:22,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 10:52:22,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 10:52:22,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (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 10:52:23,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 10:52:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 10:52:23,203 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 10:52:23,203 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 10:52:23,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23 BoogieIcfgContainer [2020-07-01 10:52:23,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 10:52:23,207 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 10:52:23,208 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 10:52:23,210 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 10:52:23,211 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (1/1) ... [2020-07-01 10:52:23,223 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 10:52:23,225 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 10:52:23,226 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 10:52:23,226 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 10:52:23,227 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 10:52:23,228 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 10:52:23,229 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 10:52:23,229 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 10:52:23,243 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 10:52:23,257 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 10:52:23,261 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 10:52:23,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:52:23,272 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 10:52:23,274 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 10:52:23,276 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 10:52:23,276 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 10:52:23,276 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 10:52:23,276 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 10:52:23,277 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 10:52:23,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23 BasicIcfg [2020-07-01 10:52:23,277 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 10:52:23,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 10:52:23,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 10:52:23,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 10:52:23,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 10:52:22" (1/4) ... [2020-07-01 10:52:23,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f16b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (2/4) ... [2020-07-01 10:52:23,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f16b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (3/4) ... [2020-07-01 10:52:23,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f16b5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23" (4/4) ... [2020-07-01 10:52:23,286 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:52:23,296 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 10:52:23,303 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 10:52:23,316 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 10:52:23,339 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 10:52:23,339 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 10:52:23,340 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:52:23,340 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:52:23,340 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:52:23,340 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 10:52:23,340 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:52:23,340 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 10:52:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 10:52:23,360 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 10:52:23,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 10:52:23,414 INFO L268 CegarLoopResult]: For program point L14(lines 14 20) no Hoare annotation was computed. [2020-07-01 10:52:23,414 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 10:52:23,414 INFO L271 CegarLoopResult]: At program point L14-2(lines 12 21) the Hoare annotation is: true [2020-07-01 10:52:23,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23 BasicIcfg [2020-07-01 10:52:23,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 10:52:23,423 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 10:52:23,423 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 10:52:23,426 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 10:52:23,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 10:52:22" (1/5) ... [2020-07-01 10:52:23,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40ef6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,428 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,428 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 10:52:22" (2/5) ... [2020-07-01 10:52:23,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40ef6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:52:23" (3/5) ... [2020-07-01 10:52:23,430 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40ef6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 10:52:23" (4/5) ... [2020-07-01 10:52:23,430 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40ef6723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:23, skipping insertion in model container [2020-07-01 10:52:23,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 10:52:23,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:52:23" (5/5) ... [2020-07-01 10:52:23,432 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 10:52:23,460 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 10:52:23,461 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 10:52:23,461 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 10:52:23,461 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 10:52:23,461 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 10:52:23,461 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 10:52:23,461 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 10:52:23,461 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 10:52:23,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:52:23,482 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:52:23,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:23,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:23,488 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:52:23,488 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:52:23,489 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 10:52:23,489 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 10:52:23,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:52:23,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:23,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:23,490 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:52:23,490 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:52:23,495 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 4#L14-2true [2020-07-01 10:52:23,495 INFO L796 eck$LassoCheckResult]: Loop: 4#L14-2true [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 5#L14true [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (- 1))) (>= v_ULTIMATE.start_main_~random~0_7 42)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 4#L14-2true [2020-07-01 10:52:23,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,502 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-07-01 10:52:23,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791912765] [2020-07-01 10:52:23,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,585 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 1 times [2020-07-01 10:52:23,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219800157] [2020-07-01 10:52:23,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,602 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:23,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:23,604 INFO L82 PathProgramCache]: Analyzing trace with hash 54718, now seen corresponding path program 1 times [2020-07-01 10:52:23,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:23,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314493578] [2020-07-01 10:52:23,605 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:23,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:23,618 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:23,679 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:23,680 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:23,680 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:23,680 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:23,680 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:23,680 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:23,681 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:23,681 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:23,681 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:52:23,681 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:23,681 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:23,701 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 10:52:23,716 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 10:52:23,725 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 10:52:23,729 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 10:52:23,733 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 10:52:23,822 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:23,823 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 10:52:23,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,830 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,842 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,842 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=60, ULTIMATE.start_main_#t~nondet2=60} Honda state: {ULTIMATE.start_main_~random~0=60, ULTIMATE.start_main_#t~nondet2=60} 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 10:52:23,875 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,875 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,880 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:52:23,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,917 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,918 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:52:23,950 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:23,954 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:23,954 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:23,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:23,987 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:24,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:24,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:24,059 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:24,061 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:24,061 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:24,061 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:24,062 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:24,062 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:24,062 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:24,062 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:24,062 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:24,062 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 10:52:24,062 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:24,062 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:24,064 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 10:52:24,069 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 10:52:24,073 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 10:52:24,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:24,084 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 10:52:24,167 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:24,173 INFO L489 LassoAnalysis]: Using template 'affine'. 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 10:52:24,179 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 10:52:24,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:24,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:24,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:24,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:24,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:24,189 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:24,196 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 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 10:52:24,233 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 10:52:24,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:24,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:24,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:24,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:24,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:24,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:24,245 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 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:24,278 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 10:52:24,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:24,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:24,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:24,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:24,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:24,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:24,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:24,285 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 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:24,317 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 10:52:24,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:24,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:24,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:24,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:24,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:24,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:24,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:24,324 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 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 10:52:24,357 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 10:52:24,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:24,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:24,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:24,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:24,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:24,361 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:24,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:24,364 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:24,369 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:24,369 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 10:52:24,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:24,373 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:24,374 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:24,374 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 10:52:24,407 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:24,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:24,443 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:24,444 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:24,456 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:52:24,457 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:24,470 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 10:52:24,494 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:52:24,499 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 10:52:24,500 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 10:52:24,529 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 4 states. [2020-07-01 10:52:24,529 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 10:52:24,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:52:24,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 10:52:24,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:52:24,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:24,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:52:24,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:24,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:52:24,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:24,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-07-01 10:52:24,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:52:24,546 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 10:52:24,547 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:52:24,547 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:52:24,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-01 10:52:24,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:24,548 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:52:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-01 10:52:24,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 10:52:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 10:52:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-01 10:52:24,576 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:52:24,576 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-01 10:52:24,576 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 10:52:24,576 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-07-01 10:52:24,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 10:52:24,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:24,577 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:24,577 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 10:52:24,577 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:52:24,578 INFO L794 eck$LassoCheckResult]: Stem: 43#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: 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|)) 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~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_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 44#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 49#L14 [31] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~random~0_5) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< v_ULTIMATE.start_main_~random~0_6 42) (= v_ULTIMATE.start_main_~random~0_5 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 45#L14-2 [2020-07-01 10:52:24,578 INFO L796 eck$LassoCheckResult]: Loop: 45#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 46#L14 [34] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_9 (+ v_ULTIMATE.start_main_~y~0_10 (- 1))) (>= v_ULTIMATE.start_main_~random~0_7 42)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 45#L14-2 [2020-07-01 10:52:24,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:24,579 INFO L82 PathProgramCache]: Analyzing trace with hash 54715, now seen corresponding path program 1 times [2020-07-01 10:52:24,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:24,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230043203] [2020-07-01 10:52:24,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:24,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,591 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:24,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:24,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1863, now seen corresponding path program 2 times [2020-07-01 10:52:24,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:24,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090589770] [2020-07-01 10:52:24,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,600 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:24,601 INFO L82 PathProgramCache]: Analyzing trace with hash 52582017, now seen corresponding path program 1 times [2020-07-01 10:52:24,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:24,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786152017] [2020-07-01 10:52:24,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:24,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:24,662 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:24,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:24,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:24,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:24,663 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:24,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:24,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:24,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:24,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:52:24,664 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:24,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:24,665 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 10:52:24,672 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 10:52:24,680 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 10:52:24,684 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 10:52:24,689 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 10:52:24,771 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:24,772 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 10:52:24,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:24,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:24,781 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:24,781 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 10:52:24,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:24,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:24,821 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:24,821 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=60, ULTIMATE.start_main_#t~nondet2=60} Honda state: {ULTIMATE.start_main_~random~0=60, ULTIMATE.start_main_#t~nondet2=60} 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 10:52:24,856 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:24,856 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:24,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:24,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/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 10:52:24,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:24,897 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:24,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 10:52:24,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:24,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:24,943 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:24,980 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:24,980 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:25,016 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:25,020 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:25,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:25,020 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:25,020 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:25,020 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:25,020 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,020 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:25,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:25,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 10:52:25,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:25,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:25,023 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 10:52:25,027 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 10:52:25,034 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 10:52:25,037 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 10:52:25,041 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 10:52:25,108 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:25,108 INFO L489 LassoAnalysis]: Using template 'affine'. 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 10:52:25,114 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 10:52:25,116 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:25,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:25,124 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 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 10:52:25,162 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 10:52:25,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:25,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:25,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:25,170 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 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,203 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 10:52:25,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,206 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:25,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:25,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:25,210 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,243 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 10:52:25,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,249 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 10:52:25,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 10:52:25,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,286 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 10:52:25,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:25,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:25,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:25,294 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:25,298 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 10:52:25,299 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,306 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:25,306 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:25,306 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:25,306 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 10:52:25,336 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:25,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:25,355 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:25,355 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:25,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:25,360 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:52:25,360 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:25,371 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 10:52:25,381 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:52:25,381 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 10:52:25,382 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-07-01 10:52:25,396 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 9 states and 13 transitions. Complement of second has 4 states. [2020-07-01 10:52:25,396 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 10:52:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:52:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-01 10:52:25,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:52:25,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 10:52:25,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 10:52:25,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 13 transitions. [2020-07-01 10:52:25,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:52:25,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 13 transitions. [2020-07-01 10:52:25,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 10:52:25,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 10:52:25,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2020-07-01 10:52:25,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 10:52:25,402 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-01 10:52:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2020-07-01 10:52:25,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 5. [2020-07-01 10:52:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 10:52:25,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-01 10:52:25,403 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 10:52:25,403 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-07-01 10:52:25,403 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 10:52:25,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2020-07-01 10:52:25,403 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 10:52:25,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 10:52:25,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 10:52:25,404 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 10:52:25,404 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 10:52:25,404 INFO L794 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY [25] ULTIMATE.startENTRY-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 96#L14-2 [2020-07-01 10:52:25,404 INFO L796 eck$LassoCheckResult]: Loop: 96#L14-2 [28] L14-2-->L14: Formula: (and (< 0 v_ULTIMATE.start_main_~y~0_7) (< 0 v_ULTIMATE.start_main_~x~0_7) (= v_ULTIMATE.start_main_~random~0_4 |v_ULTIMATE.start_main_#t~nondet2_3|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_3|} OutVars{ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_4, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_~random~0] 98#L14 [31] L14-->L14-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_8 v_ULTIMATE.start_main_~random~0_5) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (< v_ULTIMATE.start_main_~random~0_6 42) (= v_ULTIMATE.start_main_~random~0_5 |v_ULTIMATE.start_main_#t~nondet3_3|)) InVars {ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~random~0=v_ULTIMATE.start_main_~random~0_5, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_2|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~random~0, ULTIMATE.start_main_~x~0] 96#L14-2 [2020-07-01 10:52:25,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:25,405 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 2 times [2020-07-01 10:52:25,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:25,405 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595166450] [2020-07-01 10:52:25,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:25,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,411 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:25,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:25,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1860, now seen corresponding path program 1 times [2020-07-01 10:52:25,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:25,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532874245] [2020-07-01 10:52:25,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:25,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:25,420 INFO L82 PathProgramCache]: Analyzing trace with hash 54715, now seen corresponding path program 2 times [2020-07-01 10:52:25,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 10:52:25,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331396618] [2020-07-01 10:52:25,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 10:52:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 10:52:25,429 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 10:52:25,469 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:25,469 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:25,470 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:25,470 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:25,470 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 10:52:25,470 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:25,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:25,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:25,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:52:25,470 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:25,470 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:25,472 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 10:52:25,479 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 10:52:25,482 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 10:52:25,494 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 10:52:25,497 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 10:52:25,562 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:25,562 INFO L404 LassoAnalysis]: Checking for nontermination... 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 10:52:25,565 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 10:52:25,565 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 10:52:25,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 10:52:25,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 10:52:25,635 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 10:52:25,637 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 10:52:25,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 10:52:25,637 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 10:52:25,637 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 10:52:25,637 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 10:52:25,637 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 10:52:25,637 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 10:52:25,637 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 10:52:25,638 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 10:52:25,638 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 10:52:25,638 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 10:52:25,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 10:52:25,647 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 10:52:25,653 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 10:52:25,656 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 10:52:25,661 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 10:52:25,725 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 10:52:25,726 INFO L489 LassoAnalysis]: Using template 'affine'. 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 10:52:25,729 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 10:52:25,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:25,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:25,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:25,735 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 10:52:25,766 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 10:52:25,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 10:52:25,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 10:52:25,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 10:52:25,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 10:52:25,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 10:52:25,770 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 10:52:25,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 10:52:25,772 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 10:52:25,775 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 10:52:25,775 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 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 10:52:25,777 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 10:52:25,777 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 10:52:25,778 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 10:52:25,778 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 10:52:25,807 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 10:52:25,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 10:52:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:25,822 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 10:52:25,822 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 10:52:25,827 INFO L264 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 10:52:25,827 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 10:52:25,835 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 10:52:25,844 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 10:52:25,845 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 10:52:25,845 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-07-01 10:52:25,859 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2020-07-01 10:52:25,859 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 10:52:25,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 10:52:25,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-07-01 10:52:25,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 10:52:25,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 10:52:25,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 10:52:25,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 10:52:25,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2020-07-01 10:52:25,863 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:52:25,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 10:52:25,863 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 10:52:25,863 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 10:52:25,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 10:52:25,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 10:52:25,863 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:25,864 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:25,864 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 10:52:25,864 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2020-07-01 10:52:25,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 10:52:25,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 10:52:25,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 10:52:25,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 10:52:25 BasicIcfg [2020-07-01 10:52:25,870 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 10:52:25,872 INFO L168 Benchmark]: Toolchain (without parser) took 3240.98 ms. Allocated memory was 514.9 MB in the beginning and 588.3 MB in the end (delta: 73.4 MB). Free memory was 435.8 MB in the beginning and 404.7 MB in the end (delta: 31.2 MB). Peak memory consumption was 104.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,873 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 10:52:25,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.24 ms. Allocated memory was 514.9 MB in the beginning and 559.4 MB in the end (delta: 44.6 MB). Free memory was 435.8 MB in the beginning and 529.2 MB in the end (delta: -93.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 559.4 MB. Free memory was 529.2 MB in the beginning and 527.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,874 INFO L168 Benchmark]: Boogie Preprocessor took 19.67 ms. Allocated memory is still 559.4 MB. Free memory was 527.5 MB in the beginning and 525.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,875 INFO L168 Benchmark]: RCFGBuilder took 225.15 ms. Allocated memory is still 559.4 MB. Free memory was 525.9 MB in the beginning and 514.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,876 INFO L168 Benchmark]: BlockEncodingV2 took 69.96 ms. Allocated memory is still 559.4 MB. Free memory was 514.5 MB in the beginning and 509.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,876 INFO L168 Benchmark]: TraceAbstraction took 144.03 ms. Allocated memory is still 559.4 MB. Free memory was 508.7 MB in the beginning and 500.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,877 INFO L168 Benchmark]: BuchiAutomizer took 2447.00 ms. Allocated memory was 559.4 MB in the beginning and 588.3 MB in the end (delta: 28.8 MB). Free memory was 500.4 MB in the beginning and 404.7 MB in the end (delta: 95.7 MB). Peak memory consumption was 124.6 MB. Max. memory is 50.3 GB. [2020-07-01 10:52:25,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 514.9 MB. Free memory is still 455.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 294.24 ms. Allocated memory was 514.9 MB in the beginning and 559.4 MB in the end (delta: 44.6 MB). Free memory was 435.8 MB in the beginning and 529.2 MB in the end (delta: -93.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 559.4 MB. Free memory was 529.2 MB in the beginning and 527.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.67 ms. Allocated memory is still 559.4 MB. Free memory was 527.5 MB in the beginning and 525.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 225.15 ms. Allocated memory is still 559.4 MB. Free memory was 525.9 MB in the beginning and 514.5 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 69.96 ms. Allocated memory is still 559.4 MB. Free memory was 514.5 MB in the beginning and 509.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 144.03 ms. Allocated memory is still 559.4 MB. Free memory was 508.7 MB in the beginning and 500.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2447.00 ms. Allocated memory was 559.4 MB in the beginning and 588.3 MB in the end (delta: 28.8 MB). Free memory was 500.4 MB in the beginning and 404.7 MB in the end (delta: 95.7 MB). Peak memory consumption was 124.6 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: 12]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 11 SDtfs, 17 SDslu, 1 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 10:52:19.257 ----------------------------------------------- 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_loWxGJ/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 10:52:26.513 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check