/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- NO Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 12:07:37,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 12:07:37,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 12:07:37,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 12:07:37,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 12:07:37,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 12:07:37,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 12:07:37,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 12:07:37,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 12:07:37,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 12:07:37,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 12:07:37,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 12:07:37,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 12:07:37,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 12:07:37,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 12:07:37,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 12:07:37,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 12:07:37,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 12:07:37,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 12:07:37,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 12:07:37,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 12:07:37,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 12:07:37,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 12:07:37,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 12:07:37,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 12:07:37,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 12:07:37,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 12:07:37,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 12:07:37,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 12:07:37,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 12:07:37,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 12:07:37,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 12:07:37,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 12:07:37,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 12:07:37,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 12:07:37,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 12:07:37,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 12:07:37,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 12:07:37,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 12:07:37,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 12:07:37,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 12:07:37,514 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 12:07:37,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 12:07:37,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 12:07:37,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 12:07:37,530 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 12:07:37,530 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 12:07:37,531 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 12:07:37,531 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 12:07:37,531 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 12:07:37,531 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 12:07:37,531 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:37,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 12:07:37,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 12:07:37,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 12:07:37,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 12:07:37,532 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 12:07:37,532 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 12:07:37,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 12:07:37,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 12:07:37,533 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 12:07:37,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:07:37,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 12:07:37,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 12:07:37,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 12:07:37,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 12:07:37,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 12:07:37,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 12:07:37,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 12:07:37,717 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 12:07:37,717 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 12:07:37,718 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:07:37,786 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ACCFvW/tmp/66088dc00ab8402cb937dd4ee42dd370/FLAG7a2ba656d [2020-07-01 12:07:38,116 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 12:07:38,117 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 12:07:38,123 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_ACCFvW/tmp/66088dc00ab8402cb937dd4ee42dd370/FLAG7a2ba656d [2020-07-01 12:07:38,542 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_ACCFvW/tmp/66088dc00ab8402cb937dd4ee42dd370 [2020-07-01 12:07:38,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 12:07:38,554 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 12:07:38,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 12:07:38,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 12:07:38,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 12:07:38,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f459f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38, skipping insertion in model container [2020-07-01 12:07:38,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,571 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 12:07:38,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 12:07:38,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:07:38,804 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 12:07:38,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 12:07:38,833 INFO L208 MainTranslator]: Completed translation [2020-07-01 12:07:38,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38 WrapperNode [2020-07-01 12:07:38,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 12:07:38,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 12:07:38,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 12:07:38,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 12:07:38,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 12:07:38,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 12:07:38,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 12:07:38,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 12:07:38,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... [2020-07-01 12:07:38,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 12:07:38,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 12:07:38,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 12:07:38,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 12:07:38,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (1/1) ... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 12:07:38,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 12:07:38,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 12:07:39,100 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 12:07:39,101 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 12:07:39,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39 BoogieIcfgContainer [2020-07-01 12:07:39,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 12:07:39,105 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 12:07:39,105 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 12:07:39,107 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 12:07:39,108 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (1/1) ... [2020-07-01 12:07:39,119 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-07-01 12:07:39,121 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 12:07:39,122 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 12:07:39,122 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 12:07:39,123 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 12:07:39,124 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 12:07:39,125 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 12:07:39,125 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 12:07:39,143 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 12:07:39,156 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 12:07:39,160 INFO L70 emoveInfeasibleEdges]: Removed 5 edges and 4 locations because of local infeasibility [2020-07-01 12:07:39,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:07:39,164 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:07:39,165 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:07:39,166 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 12:07:39,167 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 12:07:39,167 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 12:07:39,167 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 12:07:39,168 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2020-07-01 12:07:39,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39 BasicIcfg [2020-07-01 12:07:39,168 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 12:07:39,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 12:07:39,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 12:07:39,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 12:07:39,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 12:07:38" (1/4) ... [2020-07-01 12:07:39,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaeb332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (2/4) ... [2020-07-01 12:07:39,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaeb332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (3/4) ... [2020-07-01 12:07:39,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aaeb332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39" (4/4) ... [2020-07-01 12:07:39,177 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:07:39,187 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 12:07:39,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 12:07:39,208 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 12:07:39,231 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 12:07:39,231 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 12:07:39,231 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:07:39,231 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:07:39,231 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:07:39,232 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 12:07:39,232 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:07:39,232 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 12:07:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-07-01 12:07:39,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 12:07:39,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-07-01 12:07:39,307 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 12:07:39,307 INFO L271 CegarLoopResult]: At program point L13-1(lines 9 16) the Hoare annotation is: true [2020-07-01 12:07:39,308 INFO L268 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-07-01 12:07:39,308 INFO L268 CegarLoopResult]: For program point L10-2(lines 9 16) no Hoare annotation was computed. [2020-07-01 12:07:39,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39 BasicIcfg [2020-07-01 12:07:39,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 12:07:39,317 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 12:07:39,317 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 12:07:39,320 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 12:07:39,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,321 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 12:07:38" (1/5) ... [2020-07-01 12:07:39,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,322 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 12:07:38" (2/5) ... [2020-07-01 12:07:39,322 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:07:39" (3/5) ... [2020-07-01 12:07:39,323 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,323 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 12:07:39" (4/5) ... [2020-07-01 12:07:39,324 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cf206ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:39, skipping insertion in model container [2020-07-01 12:07:39,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 12:07:39,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:07:39" (5/5) ... [2020-07-01 12:07:39,325 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 12:07:39,353 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 12:07:39,353 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 12:07:39,353 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 12:07:39,353 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 12:07:39,354 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 12:07:39,354 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 12:07:39,354 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 12:07:39,354 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 12:07:39,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:07:39,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:39,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:39,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:39,381 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:07:39,381 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:39,382 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 12:07:39,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-01 12:07:39,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-01 12:07:39,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:39,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:39,383 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 12:07:39,383 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:39,388 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [32] ULTIMATE.startENTRY-->L13-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 5#L13-1true [2020-07-01 12:07:39,388 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-1true [44] L13-1-->L10: Formula: (< 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 3#L10true [42] L10-->L10-2: Formula: (>= 0 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 6#L10-2true [38] L10-2-->L13-1: Formula: (and (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 1)) (< v_ULTIMATE.start_main_~i~0_7 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 5#L13-1true [2020-07-01 12:07:39,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,395 INFO L82 PathProgramCache]: Analyzing trace with hash 63, now seen corresponding path program 1 times [2020-07-01 12:07:39,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005008315] [2020-07-01 12:07:39,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,477 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,479 INFO L82 PathProgramCache]: Analyzing trace with hash 73415, now seen corresponding path program 1 times [2020-07-01 12:07:39,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215780257] [2020-07-01 12:07:39,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,494 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:39,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1920457, now seen corresponding path program 1 times [2020-07-01 12:07:39,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:39,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087135628] [2020-07-01 12:07:39,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:39,508 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:39,568 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:39,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:39,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:39,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:39,570 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 12:07:39,570 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,570 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:39,570 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:39,570 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:07:39,570 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:39,571 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:39,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,682 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:39,682 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:39,691 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:39,702 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:07:39,702 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:39,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:39,740 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 12:07:39,740 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 12:07:39,795 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 12:07:39,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 12:07:39,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 12:07:39,869 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 12:07:39,871 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 12:07:39,871 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 12:07:39,872 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 12:07:39,872 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 12:07:39,872 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 12:07:39,872 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:39,872 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 12:07:39,872 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 12:07:39,873 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 12:07:39,873 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 12:07:39,873 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 12:07:39,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 12:07:39,896 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 12:07:39,965 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 12:07:39,971 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:39,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:07:39,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:39,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:39,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:39,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:39,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:07:39,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:07:39,992 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:07:40,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:40,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:40,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:40,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:40,031 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-01 12:07:40,031 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-01 12:07:40,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:07:40,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:40,072 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:40,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:40,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:40,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:40,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:40,074 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:40,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-01 12:07:40,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 12:07:40,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 12:07:40,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 12:07:40,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 12:07:40,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 12:07:40,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 12:07:40,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 12:07:40,116 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 12:07:40,120 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-07-01 12:07:40,120 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 12:07:40,126 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 12:07:40,127 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 12:07:40,127 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 12:07:40,128 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-07-01 12:07:40,161 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 12:07:40,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,199 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,200 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,213 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,213 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:07:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,234 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 12:07:40,235 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 12:07:40,285 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-07-01 12:07:40,290 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-01 12:07:40,292 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 4 states. Second operand 3 states. [2020-07-01 12:07:40,335 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 4 states.. Second operand 3 states. Result 13 states and 27 transitions. Complement of second has 4 states. [2020-07-01 12:07:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 12:07:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 12:07:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2020-07-01 12:07:40,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 1 letters. Loop has 3 letters. [2020-07-01 12:07:40,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2020-07-01 12:07:40,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 1 letters. Loop has 6 letters. [2020-07-01 12:07:40,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 12:07:40,349 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 27 transitions. [2020-07-01 12:07:40,351 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:07:40,356 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 27 transitions. [2020-07-01 12:07:40,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-07-01 12:07:40,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-07-01 12:07:40,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 27 transitions. [2020-07-01 12:07:40,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:07:40,358 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 27 transitions. [2020-07-01 12:07:40,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 27 transitions. [2020-07-01 12:07:40,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-01 12:07:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-01 12:07:40,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 25 transitions. [2020-07-01 12:07:40,388 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 25 transitions. [2020-07-01 12:07:40,388 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 25 transitions. [2020-07-01 12:07:40,388 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 12:07:40,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 25 transitions. [2020-07-01 12:07:40,389 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-01 12:07:40,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:40,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:40,390 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:07:40,390 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:40,390 INFO L794 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 65#L13-1 [45] L13-1-->L10: Formula: (> 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 67#L10 [2020-07-01 12:07:40,390 INFO L796 eck$LassoCheckResult]: Loop: 67#L10 [42] L10-->L10-2: Formula: (>= 0 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 69#L10-2 [43] L10-2-->L13-1: Formula: (>= v_ULTIMATE.start_main_~i~0_8 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 66#L13-1 [44] L13-1-->L10: Formula: (< 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 67#L10 [2020-07-01 12:07:40,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1998, now seen corresponding path program 1 times [2020-07-01 12:07:40,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969874397] [2020-07-01 12:07:40,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,398 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,398 INFO L82 PathProgramCache]: Analyzing trace with hash 71530, now seen corresponding path program 1 times [2020-07-01 12:07:40,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517294904] [2020-07-01 12:07:40,399 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,406 INFO L82 PathProgramCache]: Analyzing trace with hash 59564157, now seen corresponding path program 1 times [2020-07-01 12:07:40,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111352384] [2020-07-01 12:07:40,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 12:07:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-01 12:07:40,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111352384] [2020-07-01 12:07:40,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-01 12:07:40,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-01 12:07:40,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680368353] [2020-07-01 12:07:40,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-01 12:07:40,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-01 12:07:40,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-01 12:07:40,472 INFO L87 Difference]: Start difference. First operand 12 states and 25 transitions. cyclomatic complexity: 16 Second operand 3 states. [2020-07-01 12:07:40,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-01 12:07:40,495 INFO L93 Difference]: Finished difference Result 22 states and 40 transitions. [2020-07-01 12:07:40,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-01 12:07:40,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 40 transitions. [2020-07-01 12:07:40,499 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-07-01 12:07:40,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 40 transitions. [2020-07-01 12:07:40,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2020-07-01 12:07:40,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-01 12:07:40,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 40 transitions. [2020-07-01 12:07:40,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 12:07:40,501 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 40 transitions. [2020-07-01 12:07:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 40 transitions. [2020-07-01 12:07:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-01 12:07:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-01 12:07:40,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 40 transitions. [2020-07-01 12:07:40,505 INFO L711 BuchiCegarLoop]: Abstraction has 22 states and 40 transitions. [2020-07-01 12:07:40,505 INFO L591 BuchiCegarLoop]: Abstraction has 22 states and 40 transitions. [2020-07-01 12:07:40,505 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 12:07:40,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 40 transitions. [2020-07-01 12:07:40,506 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2020-07-01 12:07:40,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 12:07:40,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 12:07:40,507 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 12:07:40,507 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-01 12:07:40,507 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY [32] ULTIMATE.startENTRY-->L13-1: Formula: (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0] 108#L13-1 [44] L13-1-->L10: Formula: (< 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 114#L10 [2020-07-01 12:07:40,507 INFO L796 eck$LassoCheckResult]: Loop: 114#L10 [42] L10-->L10-2: Formula: (>= 0 v_ULTIMATE.start_main_~i~0_11) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[] 122#L10-2 [43] L10-2-->L13-1: Formula: (>= v_ULTIMATE.start_main_~i~0_8 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8} AuxVars[] AssignedVars[] 123#L13-1 [44] L13-1-->L10: Formula: (< 0 v_rep~unnamed0~0~true_1) InVars {v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} OutVars{v_rep~unnamed0~0~true_1=v_rep~unnamed0~0~true_1} AuxVars[] AssignedVars[] 114#L10 [2020-07-01 12:07:40,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1997, now seen corresponding path program 1 times [2020-07-01 12:07:40,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243110719] [2020-07-01 12:07:40,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,514 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,515 INFO L82 PathProgramCache]: Analyzing trace with hash 71530, now seen corresponding path program 2 times [2020-07-01 12:07:40,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604291923] [2020-07-01 12:07:40,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,521 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 12:07:40,522 INFO L82 PathProgramCache]: Analyzing trace with hash 59534366, now seen corresponding path program 1 times [2020-07-01 12:07:40,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 12:07:40,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862926978] [2020-07-01 12:07:40,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 12:07:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 12:07:40,530 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 12:07:40,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] [2020-07-01 12:07:40,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] [2020-07-01 12:07:40,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 12:07:40 BasicIcfg [2020-07-01 12:07:40,585 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 12:07:40,588 INFO L168 Benchmark]: Toolchain (without parser) took 2033.25 ms. Allocated memory was 649.6 MB in the beginning and 707.8 MB in the end (delta: 58.2 MB). Free memory was 556.3 MB in the beginning and 515.1 MB in the end (delta: 41.2 MB). Peak memory consumption was 99.4 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,589 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 12:07:40,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.08 ms. Allocated memory was 649.6 MB in the beginning and 707.8 MB in the end (delta: 58.2 MB). Free memory was 556.3 MB in the beginning and 671.1 MB in the end (delta: -114.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.22 ms. Allocated memory is still 707.8 MB. Free memory was 671.1 MB in the beginning and 669.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,591 INFO L168 Benchmark]: Boogie Preprocessor took 19.25 ms. Allocated memory is still 707.8 MB. Free memory was 669.8 MB in the beginning and 668.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,591 INFO L168 Benchmark]: RCFGBuilder took 216.53 ms. Allocated memory is still 707.8 MB. Free memory was 668.4 MB in the beginning and 654.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,592 INFO L168 Benchmark]: BlockEncodingV2 took 63.60 ms. Allocated memory is still 707.8 MB. Free memory was 654.1 MB in the beginning and 650.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,592 INFO L168 Benchmark]: TraceAbstraction took 146.77 ms. Allocated memory is still 707.8 MB. Free memory was 648.8 MB in the beginning and 640.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,593 INFO L168 Benchmark]: BuchiAutomizer took 1268.94 ms. Allocated memory is still 707.8 MB. Free memory was 640.7 MB in the beginning and 515.1 MB in the end (delta: 125.6 MB). Peak memory consumption was 125.6 MB. Max. memory is 50.3 GB. [2020-07-01 12:07:40,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 4 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 577.9 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.08 ms. Allocated memory was 649.6 MB in the beginning and 707.8 MB in the end (delta: 58.2 MB). Free memory was 556.3 MB in the beginning and 671.1 MB in the end (delta: -114.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.22 ms. Allocated memory is still 707.8 MB. Free memory was 671.1 MB in the beginning and 669.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.25 ms. Allocated memory is still 707.8 MB. Free memory was 669.8 MB in the beginning and 668.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 216.53 ms. Allocated memory is still 707.8 MB. Free memory was 668.4 MB in the beginning and 654.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 63.60 ms. Allocated memory is still 707.8 MB. Free memory was 654.1 MB in the beginning and 650.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 146.77 ms. Allocated memory is still 707.8 MB. Free memory was 648.8 MB in the beginning and 640.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1268.94 ms. Allocated memory is still 707.8 MB. Free memory was 640.7 MB in the beginning and 515.1 MB in the end (delta: 125.6 MB). Peak memory consumption was 125.6 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier2,QUANTIFIED] * 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: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 0 deterministic, 1 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 13 SDslu, 11 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc1 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 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. [2020-07-01 12:07:40,606 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier3,QUANTIFIED] [2020-07-01 12:07:40,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier4,QUANTIFIED] [2020-07-01 12:07:40,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier5,QUANTIFIED] [2020-07-01 12:07:40,608 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[freshIdentifier6,QUANTIFIED] Nontermination argument in form of an infinite execution State at position 0 is {freshIdentifier5=1} State at position 1 is {freshIdentifier6=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e27f5c6=0, \result=0, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE \read(true) Loop: [L10] COND FALSE !(i > 0) [L13] COND FALSE !(i < 0) [L9] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 12:07:35.235 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp/BenchExec_run_ACCFvW/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 12:07:41.038 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check