/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:51:21,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:51:21,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:51:21,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:51:21,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:51:21,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:51:21,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:51:21,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:51:21,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:51:21,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:51:21,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:51:21,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:51:21,793 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:51:21,794 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:51:21,795 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:51:21,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:51:21,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:51:21,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:51:21,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:51:21,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:51:21,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:51:21,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:51:21,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:51:21,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:51:21,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:51:21,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:51:21,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:51:21,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:51:21,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:51:21,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:51:21,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:51:21,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:51:21,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:51:21,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:51:21,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:51:21,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:51:21,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:51:21,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:51:21,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:51:21,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:51:21,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:51:21,817 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-07-01 11:51:21,832 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:51:21,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:51:21,833 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:51:21,833 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:51:21,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:51:21,833 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:51:21,834 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:51:21,834 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:51:21,834 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:51:21,834 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:51:21,834 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:51:21,835 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:51:21,835 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:51:21,835 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:51:21,835 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:21,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:51:21,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:51:21,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:51:21,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:51:21,836 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:51:21,836 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:51:21,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:51:21,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:51:21,837 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:51:21,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:51:21,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:51:21,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:51:21,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:51:21,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:51:22,005 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:51:22,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:51:22,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:51:22,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:51:22,024 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:51:22,025 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:51:22,082 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_cLwkUL/tmp/77f9c9c57aff45a48e31abe5d48d4d7f/FLAGf725f1746 [2020-07-01 11:51:22,435 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:51:22,436 INFO L160 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-07-01 11:51:22,442 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/BenchExec_run_cLwkUL/tmp/77f9c9c57aff45a48e31abe5d48d4d7f/FLAGf725f1746 [2020-07-01 11:51:22,845 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/BenchExec_run_cLwkUL/tmp/77f9c9c57aff45a48e31abe5d48d4d7f [2020-07-01 11:51:22,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:51:22,858 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:51:22,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:51:22,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:51:22,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:51:22,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:51:22" (1/1) ... [2020-07-01 11:51:22,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cf2c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:22, skipping insertion in model container [2020-07-01 11:51:22,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:51:22" (1/1) ... [2020-07-01 11:51:22,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:51:22,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:51:23,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:51:23,108 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:51:23,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:51:23,137 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:51:23,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23 WrapperNode [2020-07-01 11:51:23,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:51:23,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:51:23,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:51:23,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:51:23,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:51:23,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:51:23,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:51:23,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:51:23,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:51:23,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:51:23,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:51:23,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:51:23,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:51:23,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:51:23,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:51:23,394 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:51:23,395 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 11:51:23,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:23 BoogieIcfgContainer [2020-07-01 11:51:23,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:51:23,399 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:51:23,399 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:51:23,401 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:51:23,402 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:23" (1/1) ... [2020-07-01 11:51:23,414 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-07-01 11:51:23,416 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:51:23,416 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:51:23,417 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:51:23,417 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:51:23,419 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:51:23,420 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:51:23,420 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:51:23,436 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:51:23,450 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 11:51:23,454 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 11:51:23,456 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:51:23,469 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-07-01 11:51:23,470 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:51:23,472 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:51:23,472 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:51:23,472 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:51:23,472 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:51:23,473 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 5 edges [2020-07-01 11:51:23,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:23 BasicIcfg [2020-07-01 11:51:23,473 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:51:23,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:51:23,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:51:23,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:51:23,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:51:22" (1/4) ... [2020-07-01 11:51:23,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebd1da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (2/4) ... [2020-07-01 11:51:23,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebd1da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:23" (3/4) ... [2020-07-01 11:51:23,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ebd1da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:23" (4/4) ... [2020-07-01 11:51:23,481 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:51:23,493 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:51:23,500 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:51:23,518 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:51:23,541 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:51:23,541 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:51:23,542 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:51:23,542 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:51:23,542 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:51:23,542 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:51:23,542 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:51:23,542 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:51:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:51:23,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:51:23,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:51:23,616 INFO L268 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-07-01 11:51:23,616 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:51:23,617 INFO L271 CegarLoopResult]: At program point L15-2(lines 14 20) the Hoare annotation is: true [2020-07-01 11:51:23,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:23 BasicIcfg [2020-07-01 11:51:23,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:51:23,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:51:23,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:51:23,629 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:51:23,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:23,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:51:22" (1/5) ... [2020-07-01 11:51:23,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42e3829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,631 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:23,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:51:23" (2/5) ... [2020-07-01 11:51:23,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42e3829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:23,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:51:23" (3/5) ... [2020-07-01 11:51:23,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42e3829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:23,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:51:23" (4/5) ... [2020-07-01 11:51:23,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42e3829f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:23, skipping insertion in model container [2020-07-01 11:51:23,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:51:23,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:51:23" (5/5) ... [2020-07-01 11:51:23,635 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:51:23,663 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:51:23,664 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:51:23,664 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:51:23,664 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:51:23,664 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:51:23,665 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:51:23,665 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:51:23,665 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:51:23,669 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:51:23,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:51:23,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:23,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:23,695 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:51:23,695 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:51:23,695 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:51:23,695 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:51:23,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:51:23,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:23,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:23,696 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:51:23,696 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:51:23,701 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-07-01 11:51:23,702 INFO L796 eck$LassoCheckResult]: Loop: 5#L15-2true [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 3#L15true [35] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 5#L15-2true [2020-07-01 11:51:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:23,708 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-07-01 11:51:23,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:23,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337679108] [2020-07-01 11:51:23,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,790 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:23,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:23,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 1 times [2020-07-01 11:51:23,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:23,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616457358] [2020-07-01 11:51:23,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,806 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:23,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:23,808 INFO L82 PathProgramCache]: Analyzing trace with hash 56734, now seen corresponding path program 1 times [2020-07-01 11:51:23,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:23,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356169244] [2020-07-01 11:51:23,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:23,819 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:23,859 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:23,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:23,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:23,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:23,861 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:23,861 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:23,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:23,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:23,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:51:23,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:23,862 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:23,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:23,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:23,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:23,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:23,978 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:23,979 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:23,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:23,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:23,997 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:23,997 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:24,038 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,075 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:24,075 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=-1} Honda state: {ULTIMATE.start_main_#t~nondet1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,108 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:24,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,182 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:24,184 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:24,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:24,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:24,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:24,185 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:24,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:24,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:24,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:51:24,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:24,186 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:24,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,277 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:24,283 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:24,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:24,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:24,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:24,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:24,299 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:51:24,299 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:51:24,306 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:24,341 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:24,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:24,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:24,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:24,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:51:24,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:51:24,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:24,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:24,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:24,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:24,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:24,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:24,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:24,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:24,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:24,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:24,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:24,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:24,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:24,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:24,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:24,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:24,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:24,436 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:51:24,436 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:51:24,442 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:24,442 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:24,443 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:24,443 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:51:24,477 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:24,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:24,516 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:51:24,517 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:24,530 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:51:24,530 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:51:24,578 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:51:24,583 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:51:24,585 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:51:24,638 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 11 states and 19 transitions. Complement of second has 6 states. [2020-07-01 11:51:24,639 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 11:51:24,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:51:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-07-01 11:51:24,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:51:24,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:24,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:51:24,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:24,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:51:24,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:24,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 19 transitions. [2020-07-01 11:51:24,654 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-01 11:51:24,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 16 transitions. [2020-07-01 11:51:24,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-07-01 11:51:24,659 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:51:24,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2020-07-01 11:51:24,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:51:24,660 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2020-07-01 11:51:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2020-07-01 11:51:24,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2020-07-01 11:51:24,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-01 11:51:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2020-07-01 11:51:24,690 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:51:24,690 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 12 transitions. [2020-07-01 11:51:24,690 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:51:24,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 12 transitions. [2020-07-01 11:51:24,691 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:51:24,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:24,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:24,692 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-01 11:51:24,692 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:51:24,692 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 55#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 50#L15 [25] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 51#L15-2 [2020-07-01 11:51:24,692 INFO L796 eck$LassoCheckResult]: Loop: 51#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 56#L15 [35] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_8 (+ v_ULTIMATE.start_main_~x~0_9 (- 1))) (> 0 |v_ULTIMATE.start_main_#t~nondet1_3|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_3|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_9} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_2|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 51#L15-2 [2020-07-01 11:51:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:24,693 INFO L82 PathProgramCache]: Analyzing trace with hash 56724, now seen corresponding path program 1 times [2020-07-01 11:51:24,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:24,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799134394] [2020-07-01 11:51:24,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,703 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:24,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:24,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1957, now seen corresponding path program 2 times [2020-07-01 11:51:24,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:24,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931851338] [2020-07-01 11:51:24,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,711 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:24,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:24,712 INFO L82 PathProgramCache]: Analyzing trace with hash 54512760, now seen corresponding path program 1 times [2020-07-01 11:51:24,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:24,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128919818] [2020-07-01 11:51:24,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:24,723 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:24,738 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:24,739 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:24,739 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:24,739 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:24,739 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:24,739 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,739 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:24,739 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:24,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:51:24,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:24,740 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:24,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,817 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:24,817 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,824 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,824 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,829 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:24,829 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,867 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:24,867 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:24,901 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:24,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:24,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:24,981 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:51:24,984 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:24,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:24,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:24,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:24,984 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:51:24,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:24,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:24,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:24,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:51:24,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:24,985 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:24,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:24,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,056 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:25,056 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:25,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:25,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:25,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:25,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:25,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:25,066 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:51:25,066 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:51:25,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:25,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:25,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:25,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:25,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:25,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:25,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 11:51:25,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 11:51:25,120 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:25,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 11:51:25,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:51:25,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:51:25,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:51:25,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:51:25,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:51:25,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:51:25,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:51:25,161 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:51:25,164 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:51:25,164 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:51:25,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:51:25,170 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:51:25,170 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:51:25,170 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-07-01 11:51:25,200 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:51:25,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:25,226 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:51:25,226 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:51:25,231 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:51:25,231 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:51:25,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 11:51:25,271 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:51:25,272 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-01 11:51:25,272 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-07-01 11:51:25,309 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 12 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 24 transitions. Complement of second has 10 states. [2020-07-01 11:51:25,309 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 11:51:25,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:51:25,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2020-07-01 11:51:25,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:51:25,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:25,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-01 11:51:25,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:25,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2020-07-01 11:51:25,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:51:25,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 24 transitions. [2020-07-01 11:51:25,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-01 11:51:25,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 20 transitions. [2020-07-01 11:51:25,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-01 11:51:25,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-01 11:51:25,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 20 transitions. [2020-07-01 11:51:25,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:51:25,316 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 20 transitions. [2020-07-01 11:51:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 20 transitions. [2020-07-01 11:51:25,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 5. [2020-07-01 11:51:25,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:51:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:51:25,318 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:51:25,318 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:51:25,318 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:51:25,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:51:25,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-07-01 11:51:25,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:51:25,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:51:25,319 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:51:25,319 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:51:25,320 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY [27] ULTIMATE.startENTRY-->L15-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 116#L15-2 [2020-07-01 11:51:25,320 INFO L796 eck$LassoCheckResult]: Loop: 116#L15-2 [31] L15-2-->L15: Formula: (<= 0 v_ULTIMATE.start_main_~x~0_7) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[] 115#L15 [25] L15-->L15-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_10 (+ v_ULTIMATE.start_main_~x~0_11 1)) (= 0 |v_ULTIMATE.start_main_#t~nondet1_5|)) InVars {ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_5|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_11} OutVars{ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_4|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~x~0] 116#L15-2 [2020-07-01 11:51:25,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:25,320 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times [2020-07-01 11:51:25,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:25,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217041365] [2020-07-01 11:51:25,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,326 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:25,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1947, now seen corresponding path program 1 times [2020-07-01 11:51:25,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:25,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322802384] [2020-07-01 11:51:25,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,334 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:25,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:51:25,335 INFO L82 PathProgramCache]: Analyzing trace with hash 56724, now seen corresponding path program 2 times [2020-07-01 11:51:25,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:51:25,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933258063] [2020-07-01 11:51:25,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:51:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:51:25,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:51:25,359 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:25,359 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:25,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:25,359 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:25,359 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:25,359 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,359 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:25,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:25,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-07-01 11:51:25,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:25,360 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:25,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,433 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:25,434 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,437 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,442 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,442 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 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 11:51:25,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,477 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,515 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:25,515 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 2, 12] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,566 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,566 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:51:25,643 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:51:25,644 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:51:25,644 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:51:25,644 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:51:25,644 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:51:25,644 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,644 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:51:25,644 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:51:25,644 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-07-01 11:51:25,644 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:51:25,645 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:51:25,646 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 11:51:25,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:51:25,720 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:51:25,721 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,745 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,784 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,787 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,787 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,819 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,853 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:51:25,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,864 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 2, 12] Nus: [1, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,896 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,896 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,900 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,900 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,936 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,936 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:51:25,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:51:25,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:51:25,971 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:51:25,971 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-07-01 11:51:26,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:51:26 BasicIcfg [2020-07-01 11:51:26,020 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:51:26,023 INFO L168 Benchmark]: Toolchain (without parser) took 3164.55 ms. Allocated memory was 649.6 MB in the beginning and 756.5 MB in the end (delta: 107.0 MB). Free memory was 562.8 MB in the beginning and 680.8 MB in the end (delta: -118.0 MB). Peak memory consumption was 224.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,023 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:51:26,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.58 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 562.8 MB in the beginning and 650.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.34 ms. Allocated memory is still 686.3 MB. Free memory was 650.7 MB in the beginning and 649.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,025 INFO L168 Benchmark]: Boogie Preprocessor took 19.80 ms. Allocated memory is still 686.3 MB. Free memory was 649.4 MB in the beginning and 648.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,026 INFO L168 Benchmark]: RCFGBuilder took 204.86 ms. Allocated memory is still 686.3 MB. Free memory was 648.0 MB in the beginning and 633.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,026 INFO L168 Benchmark]: BlockEncodingV2 took 74.43 ms. Allocated memory is still 686.3 MB. Free memory was 633.8 MB in the beginning and 628.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,027 INFO L168 Benchmark]: TraceAbstraction took 150.97 ms. Allocated memory is still 686.3 MB. Free memory was 627.3 MB in the beginning and 619.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,027 INFO L168 Benchmark]: BuchiAutomizer took 2394.52 ms. Allocated memory was 686.3 MB in the beginning and 756.5 MB in the end (delta: 70.3 MB). Free memory was 619.1 MB in the beginning and 680.8 MB in the end (delta: -61.7 MB). Peak memory consumption was 243.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:51:26,031 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 649.6 MB. Free memory is still 583.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.58 ms. Allocated memory was 649.6 MB in the beginning and 686.3 MB in the end (delta: 36.7 MB). Free memory was 562.8 MB in the beginning and 650.7 MB in the end (delta: -88.0 MB). Peak memory consumption was 28.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.34 ms. Allocated memory is still 686.3 MB. Free memory was 650.7 MB in the beginning and 649.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.80 ms. Allocated memory is still 686.3 MB. Free memory was 649.4 MB in the beginning and 648.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 204.86 ms. Allocated memory is still 686.3 MB. Free memory was 648.0 MB in the beginning and 633.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 74.43 ms. Allocated memory is still 686.3 MB. Free memory was 633.8 MB in the beginning and 628.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.97 ms. Allocated memory is still 686.3 MB. Free memory was 627.3 MB in the beginning and 619.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2394.52 ms. Allocated memory was 686.3 MB in the beginning and 756.5 MB in the end (delta: 70.3 MB). Free memory was 619.1 MB in the beginning and 680.8 MB in the end (delta: -61.7 MB). Peak memory consumption was 243.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 38 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2020-07-01 11:51:26,041 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,041 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,042 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,043 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,044 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 11:51:26,044 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 11:51:26,044 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@885f978=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@626125e7=0, x=0, ~unnamed0~0~false=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@885f978=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@626125e7=0, x=0, ~unnamed0~0~false=0} For i>1, the state at position i is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@885f978=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@626125e7=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 1, ~unnamed0~0~false=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 2, 12] Mus: [1, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = __VERIFIER_nondet_int() Loop: [L14] COND TRUE x >= 0 [L15] COND FALSE !(__VERIFIER_nondet_int() != 0) [L18] x = x + 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 11:51:19.602 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp/BenchExec_run_cLwkUL/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:51:26.270 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check