/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:18:21,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:18:21,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:18:21,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:18:21,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:18:21,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:18:21,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:18:21,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:18:21,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:18:21,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:18:21,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:18:21,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:18:21,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:18:21,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:18:21,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:18:21,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:18:21,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:18:21,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:18:21,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:18:21,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:18:21,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:18:21,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:18:21,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:18:21,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:18:21,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:18:21,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:18:21,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:18:21,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:18:21,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:18:21,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:18:21,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:18:21,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:18:21,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:18:21,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:18:21,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:18:21,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:18:21,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:18:21,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:18:21,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:18:21,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:18:21,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:18:21,921 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:18:21,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:18:21,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:18:21,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:18:21,937 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:18:21,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:18:21,937 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:18:21,938 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:18:21,938 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:18:21,938 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:18:21,938 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:18:21,938 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:18:21,939 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:18:21,939 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:18:21,939 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:18:21,939 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:21,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:18:21,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:18:21,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:18:21,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:18:21,940 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:18:21,940 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:18:21,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:18:21,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:18:21,941 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:18:21,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:18:21,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:18:21,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:18:21,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:18:21,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:18:22,110 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:18:22,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:18:22,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:18:22,129 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:18:22,129 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:18:22,130 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:18:22,192 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eOOkN4/tmp/2952edad3b5f421db039451d02b01168/FLAG338b75c33 [2020-07-01 12:18:22,526 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:18:22,527 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:18:22,533 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_eOOkN4/tmp/2952edad3b5f421db039451d02b01168/FLAG338b75c33 [2020-07-01 12:18:22,930 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_eOOkN4/tmp/2952edad3b5f421db039451d02b01168 [2020-07-01 12:18:22,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:18:22,943 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:18:22,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:18:22,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:18:22,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:18:22,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:18:22" (1/1) ... [2020-07-01 12:18:22,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d14bdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:22, skipping insertion in model container [2020-07-01 12:18:22,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:18:22" (1/1) ... [2020-07-01 12:18:22,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:18:22,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:18:23,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:18:23,207 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:18:23,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:18:23,239 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:18:23,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23 WrapperNode [2020-07-01 12:18:23,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:18:23,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:18:23,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:18:23,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:18:23,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:18:23,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:18:23,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:18:23,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:18:23,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:18:23,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:18:23,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:18:23,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:18:23,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:18:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:18:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:18:23,522 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:18:23,523 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:18:23,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23 BoogieIcfgContainer [2020-07-01 12:18:23,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:18:23,527 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:18:23,527 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:18:23,529 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:18:23,530 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (1/1) ... [2020-07-01 12:18:23,542 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 12:18:23,544 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:18:23,544 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:18:23,545 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:18:23,545 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:18:23,547 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:18:23,548 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:18:23,548 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:18:23,562 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:18:23,576 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:18:23,580 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 12:18:23,582 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:18:23,596 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 12:18:23,598 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 12:18:23,599 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:18:23,600 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:18:23,600 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:18:23,600 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:18:23,600 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 12:18:23,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23 BasicIcfg [2020-07-01 12:18:23,601 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:18:23,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:18:23,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:18:23,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:18:23,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:18:22" (1/4) ... [2020-07-01 12:18:23,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351fae69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (2/4) ... [2020-07-01 12:18:23,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351fae69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (3/4) ... [2020-07-01 12:18:23,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@351fae69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23" (4/4) ... [2020-07-01 12:18:23,610 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:18:23,620 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:18:23,627 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:18:23,641 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:18:23,664 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:18:23,664 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:18:23,664 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:18:23,664 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:18:23,664 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:18:23,665 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:18:23,665 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:18:23,665 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:18:23,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 12:18:23,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:18:23,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 12:18:23,741 INFO L271 CegarLoopResult]: At program point L19-2(lines 18 27) the Hoare annotation is: true [2020-07-01 12:18:23,741 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:18:23,742 INFO L268 CegarLoopResult]: For program point L19(lines 19 26) no Hoare annotation was computed. [2020-07-01 12:18:23,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23 BasicIcfg [2020-07-01 12:18:23,750 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:18:23,751 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:18:23,751 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:18:23,755 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:18:23,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:18:22" (1/5) ... [2020-07-01 12:18:23,756 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6385b56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:18:23" (2/5) ... [2020-07-01 12:18:23,757 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6385b56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,757 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,757 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:18:23" (3/5) ... [2020-07-01 12:18:23,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6385b56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:18:23" (4/5) ... [2020-07-01 12:18:23,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6385b56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:18:23, skipping insertion in model container [2020-07-01 12:18:23,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:18:23,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:18:23" (5/5) ... [2020-07-01 12:18:23,760 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:18:23,787 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:18:23,788 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:18:23,788 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:18:23,788 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:18:23,788 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:18:23,788 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:18:23,788 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:18:23,788 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:18:23,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:18:23,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:18:23,809 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:23,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:23,816 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:18:23,816 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:18:23,816 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:18:23,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 12:18:23,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:18:23,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:23,817 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:23,818 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:18:23,818 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:18:23,823 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [24] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 4#L19-2true [2020-07-01 12:18:23,824 INFO L796 eck$LassoCheckResult]: Loop: 4#L19-2true [28] L19-2-->L19: Formula: (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7) 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} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 5#L19true [35] L19-->L19-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, 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_~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_~x~0] 4#L19-2true [2020-07-01 12:18:23,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,833 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2020-07-01 12:18:23,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238691666] [2020-07-01 12:18:23,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,914 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1864, now seen corresponding path program 1 times [2020-07-01 12:18:23,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137118830] [2020-07-01 12:18:23,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:23,940 INFO L82 PathProgramCache]: Analyzing trace with hash 53758, now seen corresponding path program 1 times [2020-07-01 12:18:23,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:23,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460450794] [2020-07-01 12:18:23,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:23,957 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:24,009 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:24,010 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:24,010 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:24,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:24,010 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:18:24,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:24,011 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:24,011 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:18:24,011 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:24,011 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:24,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,041 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 12:18:24,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,144 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:24,145 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,163 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,163 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,206 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:24,246 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:24,280 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:24,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:18:24,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:24,631 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:18:24,634 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:24,635 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:24,635 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:24,635 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:24,635 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:18:24,635 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:24,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:24,636 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:18:24,636 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:24,636 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:24,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:24,720 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:24,726 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:18:24,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:18:24,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:24,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:18:24,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:18:24,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:24,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:24,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,831 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:24,831 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:24,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:24,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,869 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:24,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:24,871 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:24,871 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:24,875 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:18:24,904 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox/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 12:18:24,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,911 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,911 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:24,916 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 12:18:24,916 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 12:18:24,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:24,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:24,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:24,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:24,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:24,961 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:24,965 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 12:18:24,965 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 12:18:24,972 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:25,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:25,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:25,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:25,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:25,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:25,016 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:25,017 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:18:25,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:25,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:25,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:25,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:25,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:25,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:25,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:25,057 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:25,059 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:18:25,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:25,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:18:25,070 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:18:25,070 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:25,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:18:25,081 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:18:25,082 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:18:25,083 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~x~0 + 1 f1 = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 12:18:25,117 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:18:30,502 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank0 (ite .cse0 1 0)) (>= c_oldRank1 (ite .cse0 .cse1 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1)))))) is different from false [2020-07-01 12:18:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:30,525 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:18:30,527 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:30,541 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:18:30,541 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:41,551 WARN L192 SmtUtils]: Spent 5.36 s on a formula simplification that was a NOOP. DAG size: 15 [2020-07-01 12:18:41,552 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 12:18:41,557 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 9 loop predicates [2020-07-01 12:18:41,559 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:18:41,633 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 8 states and 17 transitions. Complement of second has 6 states. [2020-07-01 12:18:41,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:18:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:18:41,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-07-01 12:18:41,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:18:41,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:41,639 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:18:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:41,665 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:18:41,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:41,673 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:18:41,674 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:41,735 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:18:41,735 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 12:18:41,775 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 12 transitions. Complement of second has 4 states. [2020-07-01 12:18:41,776 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 12:18:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:18:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 12:18:41,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 12:18:41,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:41,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:18:41,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:41,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 12:18:41,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:41,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 12 transitions. [2020-07-01 12:18:41,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:18:41,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 12:18:41,790 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-07-01 12:18:41,790 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-01 12:18:41,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 12 transitions. [2020-07-01 12:18:41,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:18:41,791 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 12:18:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 12 transitions. [2020-07-01 12:18:41,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-01 12:18:41,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 12:18:41,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 12:18:41,819 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 12:18:41,819 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 12:18:41,819 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:18:41,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 12:18:41,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 12:18:41,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:18:41,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:18:41,821 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 12:18:41,821 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 12:18:41,821 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [24] ULTIMATE.startENTRY-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) (= v_ULTIMATE.start_main_~z~0_1 |v_ULTIMATE.start_main_#t~nondet2_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~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_~z~0=v_ULTIMATE.start_main_~z~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet2_4|, |v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 79#L19-2 [28] L19-2-->L19: Formula: (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7) 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} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 84#L19 [31] L19-->L19-2: Formula: (and (= v_ULTIMATE.start_main_~z~0_6 (+ v_ULTIMATE.start_main_~z~0_7 (- 1))) (= v_ULTIMATE.start_main_~x~0_10 (+ (* v_ULTIMATE.start_main_~z~0_7 (- 1)) v_ULTIMATE.start_main_~x~0_11)) (= v_ULTIMATE.start_main_~y~0_10 (+ (* v_ULTIMATE.start_main_~z~0_7 v_ULTIMATE.start_main_~z~0_7) v_ULTIMATE.start_main_~y~0_11)) (= 0 |v_ULTIMATE.start_main_#t~nondet3_5|)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_11, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_10, ULTIMATE.start_main_~z~0=v_ULTIMATE.start_main_~z~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_4|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0] 80#L19-2 [2020-07-01 12:18:41,821 INFO L796 eck$LassoCheckResult]: Loop: 80#L19-2 [28] L19-2-->L19: Formula: (<= v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_7) 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} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 81#L19 [35] L19-->L19-2: Formula: (and (< 0 |v_ULTIMATE.start_main_#t~nondet3_3|) (= v_ULTIMATE.start_main_~y~0_8 (+ v_ULTIMATE.start_main_~y~0_9 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 1))) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_9, 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_~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_~x~0] 80#L19-2 [2020-07-01 12:18:41,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:41,822 INFO L82 PathProgramCache]: Analyzing trace with hash 53754, now seen corresponding path program 1 times [2020-07-01 12:18:41,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:41,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279964867] [2020-07-01 12:18:41,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:41,828 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-01 12:18:41,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131279476] [2020-07-01 12:18:41,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:18:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,856 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:41,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:41,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1864, now seen corresponding path program 2 times [2020-07-01 12:18:41,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:41,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322598907] [2020-07-01 12:18:41,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:41,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:41,868 INFO L82 PathProgramCache]: Analyzing trace with hash 51658497, now seen corresponding path program 1 times [2020-07-01 12:18:41,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:18:41,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746454893] [2020-07-01 12:18:41,868 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:18:41,872 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-01 12:18:41,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [341006590] [2020-07-01 12:18:41,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-01 12:18:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:18:41,909 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:18:41,930 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:41,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:41,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:41,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:41,931 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:18:41,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:41,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:41,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:41,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:18:41,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:41,932 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:41,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:41,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:41,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:41,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:42,014 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:42,014 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 12:18:42,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:42,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:42,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:42,025 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:42,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:42,061 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:42,061 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=1} Honda state: {ULTIMATE.start_main_#t~nondet3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:42,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:42,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:42,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:18:42,098 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:42,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:18:42,131 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:18:42,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:18:42,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:18:42,454 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:18:42,457 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:18:42,457 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:18:42,457 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:18:42,457 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:18:42,457 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:18:42,457 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:42,457 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:18:42,458 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:18:42,458 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 12:18:42,458 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:18:42,458 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:18:42,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:42,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:42,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:42,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:18:42,527 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:18:42,528 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/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 12:18:42,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,533 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:42,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:18:42,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:18:42,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:42,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:42,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:42,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:42,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:42,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:18:42,614 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:18:42,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:42,649 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:42,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:18:42,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:18:42,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:42,656 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-07-01 12:18:42,685 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:42,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,690 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:42,693 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 12:18:42,694 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 12:18:42,698 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,732 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:42,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,732 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:42,733 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:18:42,733 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:42,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,767 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,769 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:42,772 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-07-01 12:18:42,772 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-07-01 12:18:42,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 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 12:18:42,809 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:18:42,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:18:42,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:18:42,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:18:42,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:18:42,811 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-07-01 12:18:42,813 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-07-01 12:18:42,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:18:42,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:18:42,822 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-07-01 12:18:42,822 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:18:42,825 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:18:42,826 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:18:42,826 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:18:42,826 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~x~0 + 1 f1 = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 12:18:42,856 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:18:48,220 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank0 (ite .cse0 1 0)) (>= c_oldRank1 (ite .cse0 .cse1 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1)))))) is different from false [2020-07-01 12:18:48,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:18:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:48,237 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:18:48,238 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:18:48,245 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:18:48,246 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:18:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:18:53,835 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 12:18:53,836 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 9 loop predicates [2020-07-01 12:18:53,836 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 12:18:53,893 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 20 states and 38 transitions. Complement of second has 12 states. [2020-07-01 12:18:53,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-01 12:18:53,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:18:53,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-07-01 12:18:53,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:18:53,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:18:53,895 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:18:59,253 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (let ((.cse1 (> .cse2 0))) (let ((.cse0 (ite .cse1 1 0))) (or (and (> c_oldRank0 .cse0) (>= c_oldRank0 0)) (and (>= c_oldRank1 0) (>= c_oldRank0 .cse0) (> c_oldRank1 (ite .cse1 .cse2 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1)))) c_unseeded)))) is different from false [2020-07-01 12:19:04,609 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank0 (ite .cse0 1 0)) (>= c_oldRank1 (ite .cse0 .cse1 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1)))))) is different from false [2020-07-01 12:19:04,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:19:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:19:04,625 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:19:04,625 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:19:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:19:04,633 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:19:04,633 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:19:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:19:04,687 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 12:19:04,687 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 12:19:04,692 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 9 states and 16 transitions. Complement of second has 2 states. [2020-07-01 12:19:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-07-01 12:19:04,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:19:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-07-01 12:19:04,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:19:04,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:19:04,694 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:19:10,055 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (let ((.cse0 (> .cse1 0))) (and (>= c_oldRank0 (ite .cse0 1 0)) (>= c_oldRank1 (ite .cse0 .cse1 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1)))))) is different from false [2020-07-01 12:19:10,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:19:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:19:10,075 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:19:10,075 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:19:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:19:10,083 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-01 12:19:10,083 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:19:10,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:19:15,590 WARN L838 $PredicateComparison]: unable to prove that (<= (let ((.cse0 (+ (* (- 2) c_ULTIMATE.start_main_~x~0) 1))) (ite (> .cse0 0) .cse0 (+ (* (- 2) c_ULTIMATE.start_main_~y~0) (* 2 c_ULTIMATE.start_main_~x~0) 1))) c_oldRank1) is different from false [2020-07-01 12:19:15,593 INFO L98 LoopCannibalizer]: 9 predicates before loop cannibalization 9 predicates after loop cannibalization [2020-07-01 12:19:15,593 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2020-07-01 12:19:15,594 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 12:19:15,914 WARN L278 uchiComplementFKVNwa]: big8 [2020-07-01 12:19:15,916 WARN L278 uchiComplementFKVNwa]: big8 [2020-07-01 12:19:15,917 WARN L278 uchiComplementFKVNwa]: big8 [2020-07-01 12:19:15,940 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. Result 222 states and 741 transitions. Complement of second has 157 states 10 powerset states147 rank states. The highest rank that occured is 9 [2020-07-01 12:19:15,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 2 accepting loop states [2020-07-01 12:19:15,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:19:15,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 31 transitions. [2020-07-01 12:19:15,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 31 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 12:19:15,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:19:15,943 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-07-01 12:19:15,944 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: no settings was sufficient at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:792) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:551) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-01 12:19:15,947 INFO L168 Benchmark]: Toolchain (without parser) took 53004.26 ms. Allocated memory was 514.9 MB in the beginning and 580.9 MB in the end (delta: 66.1 MB). Free memory was 439.2 MB in the beginning and 422.3 MB in the end (delta: 16.9 MB). Peak memory consumption was 83.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,948 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:19:15,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.48 ms. Allocated memory was 514.9 MB in the beginning and 537.4 MB in the end (delta: 22.5 MB). Free memory was 439.2 MB in the beginning and 505.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 537.4 MB. Free memory was 504.9 MB in the beginning and 503.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,949 INFO L168 Benchmark]: Boogie Preprocessor took 20.40 ms. Allocated memory is still 537.4 MB. Free memory was 503.2 MB in the beginning and 502.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,950 INFO L168 Benchmark]: RCFGBuilder took 230.14 ms. Allocated memory is still 537.4 MB. Free memory was 502.2 MB in the beginning and 489.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,950 INFO L168 Benchmark]: BlockEncodingV2 took 74.57 ms. Allocated memory is still 537.4 MB. Free memory was 489.5 MB in the beginning and 484.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,951 INFO L168 Benchmark]: TraceAbstraction took 147.93 ms. Allocated memory is still 537.4 MB. Free memory was 483.6 MB in the beginning and 475.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,951 INFO L168 Benchmark]: BuchiAutomizer took 52194.78 ms. Allocated memory was 537.4 MB in the beginning and 580.9 MB in the end (delta: 43.5 MB). Free memory was 475.0 MB in the beginning and 422.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 96.2 MB. Max. memory is 50.3 GB. [2020-07-01 12:19:15,955 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, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 458.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.48 ms. Allocated memory was 514.9 MB in the beginning and 537.4 MB in the end (delta: 22.5 MB). Free memory was 439.2 MB in the beginning and 505.4 MB in the end (delta: -66.2 MB). Peak memory consumption was 29.0 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.09 ms. Allocated memory is still 537.4 MB. Free memory was 504.9 MB in the beginning and 503.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.40 ms. Allocated memory is still 537.4 MB. Free memory was 503.2 MB in the beginning and 502.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 230.14 ms. Allocated memory is still 537.4 MB. Free memory was 502.2 MB in the beginning and 489.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.57 ms. Allocated memory is still 537.4 MB. Free memory was 489.5 MB in the beginning and 484.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.93 ms. Allocated memory is still 537.4 MB. Free memory was 483.6 MB in the beginning and 475.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 52194.78 ms. Allocated memory was 537.4 MB in the beginning and 580.9 MB in the end (delta: 43.5 MB). Free memory was 475.0 MB in the beginning and 422.3 MB in the end (delta: 52.7 MB). Peak memory consumption was 96.2 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: 18]: 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: no settings was sufficient de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: no settings was sufficient: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.refineBuchi(BuchiCegarLoop.java:792) RESULT: Ultimate could not prove your program: Toolchain returned no result. !SESSION 2020-07-01 12:18:19.679 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_eOOkN4/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:19:16.590 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check