/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- YES Ultimate: Cannot open display: This is Ultimate 0.1.25-34f2e62 [2020-07-01 11:48:37,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 11:48:37,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 11:48:37,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 11:48:37,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 11:48:37,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 11:48:37,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 11:48:37,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 11:48:37,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 11:48:37,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 11:48:37,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 11:48:37,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 11:48:37,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 11:48:37,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 11:48:37,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 11:48:37,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 11:48:37,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 11:48:37,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 11:48:37,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 11:48:37,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 11:48:37,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 11:48:37,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 11:48:37,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 11:48:37,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 11:48:37,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 11:48:37,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 11:48:37,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 11:48:37,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 11:48:37,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 11:48:37,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 11:48:37,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 11:48:37,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 11:48:37,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 11:48:37,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 11:48:37,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 11:48:37,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 11:48:37,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 11:48:37,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 11:48:37,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 11:48:37,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 11:48:37,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 11:48:37,726 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 11:48:37,740 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 11:48:37,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 11:48:37,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 11:48:37,741 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 11:48:37,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 11:48:37,742 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:48:37,742 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 11:48:37,742 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 11:48:37,742 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 11:48:37,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 11:48:37,743 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 11:48:37,743 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 11:48:37,743 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 11:48:37,743 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 11:48:37,743 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:48:37,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 11:48:37,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 11:48:37,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 11:48:37,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 11:48:37,744 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 11:48:37,744 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 11:48:37,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 11:48:37,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 11:48:37,745 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 11:48:37,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 11:48:37,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 11:48:37,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 11:48:37,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 11:48:37,746 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 11:48:37,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 11:48:37,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 11:48:37,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 11:48:37,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 11:48:37,929 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 11:48:37,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:48:37,990 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_VcYitt/tmp/48228cf1a31d41c7a5eff69e2350a4ac/FLAG8a3d7f676 [2020-07-01 11:48:38,321 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 11:48:38,322 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 11:48:38,328 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_VcYitt/tmp/48228cf1a31d41c7a5eff69e2350a4ac/FLAG8a3d7f676 [2020-07-01 11:48:38,736 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_VcYitt/tmp/48228cf1a31d41c7a5eff69e2350a4ac [2020-07-01 11:48:38,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 11:48:38,749 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 11:48:38,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 11:48:38,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 11:48:38,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 11:48:38,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:48:38" (1/1) ... [2020-07-01 11:48:38,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73bcb206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:38, skipping insertion in model container [2020-07-01 11:48:38,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 11:48:38" (1/1) ... [2020-07-01 11:48:38,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 11:48:38,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 11:48:39,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:48:39,016 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 11:48:39,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 11:48:39,046 INFO L208 MainTranslator]: Completed translation [2020-07-01 11:48:39,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39 WrapperNode [2020-07-01 11:48:39,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 11:48:39,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 11:48:39,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 11:48:39,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 11:48:39,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 11:48:39,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 11:48:39,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 11:48:39,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 11:48:39,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 11:48:39,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 11:48:39,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 11:48:39,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 11:48:39,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (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 11:48:39,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 11:48:39,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 11:48:39,338 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 11:48:39,339 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-01 11:48:39,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:48:39 BoogieIcfgContainer [2020-07-01 11:48:39,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 11:48:39,343 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 11:48:39,343 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 11:48:39,345 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 11:48:39,346 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:48:39" (1/1) ... [2020-07-01 11:48:39,357 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-07-01 11:48:39,359 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 11:48:39,359 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 11:48:39,360 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 11:48:39,360 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 11:48:39,362 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 11:48:39,363 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 11:48:39,363 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 11:48:39,376 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 11:48:39,384 INFO L200 BlockEncoder]: SBE split 0 edges [2020-07-01 11:48:39,389 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-07-01 11:48:39,390 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:48:39,408 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2020-07-01 11:48:39,410 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-07-01 11:48:39,412 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 11:48:39,412 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 11:48:39,412 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 11:48:39,412 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 11:48:39,413 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-07-01 11:48:39,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:48:39 BasicIcfg [2020-07-01 11:48:39,413 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 11:48:39,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 11:48:39,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 11:48:39,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 11:48:39,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 11:48:38" (1/4) ... [2020-07-01 11:48:39,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (2/4) ... [2020-07-01 11:48:39,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:48:39" (3/4) ... [2020-07-01 11:48:39,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8b481 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:48:39" (4/4) ... [2020-07-01 11:48:39,423 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:48:39,436 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 11:48:39,443 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 11:48:39,457 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 11:48:39,480 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 11:48:39,481 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 11:48:39,481 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:48:39,481 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:48:39,481 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:48:39,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 11:48:39,482 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:48:39,482 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 11:48:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-07-01 11:48:39,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 11:48:39,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-07-01 11:48:39,563 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 11:48:39,563 INFO L271 CegarLoopResult]: At program point L7-2(lines 7 10) the Hoare annotation is: true [2020-07-01 11:48:39,563 INFO L271 CegarLoopResult]: At program point L6-2(lines 6 13) the Hoare annotation is: true [2020-07-01 11:48:39,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:48:39 BasicIcfg [2020-07-01 11:48:39,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 11:48:39,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 11:48:39,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 11:48:39,576 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 11:48:39,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:48:39,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 11:48:38" (1/5) ... [2020-07-01 11:48:39,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2102309d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:48:39,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 11:48:39" (2/5) ... [2020-07-01 11:48:39,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2102309d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:48:39,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:48:39" (3/5) ... [2020-07-01 11:48:39,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2102309d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:48:39,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 11:48:39" (4/5) ... [2020-07-01 11:48:39,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2102309d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:48:39, skipping insertion in model container [2020-07-01 11:48:39,580 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 11:48:39,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:48:39" (5/5) ... [2020-07-01 11:48:39,582 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 11:48:39,610 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 11:48:39,610 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 11:48:39,611 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 11:48:39,611 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 11:48:39,611 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 11:48:39,611 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 11:48:39,611 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 11:48:39,611 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 11:48:39,615 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:48:39,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:48:39,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:48:39,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:48:39,637 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:48:39,637 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:48:39,638 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 11:48:39,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-01 11:48:39,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-01 11:48:39,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:48:39,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:48:39,639 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 11:48:39,639 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-01 11:48:39,644 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 5#L6-2true [2020-07-01 11:48:39,644 INFO L796 eck$LassoCheckResult]: Loop: 5#L6-2true [43] L6-2-->L7-2: Formula: (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 3#L7-2true [48] L7-2-->L6-2: Formula: (and (= v_ULTIMATE.start_test_fun_~c~0_9 (+ v_ULTIMATE.start_test_fun_~c~0_10 1)) (<= v_ULTIMATE.start_test_fun_~y_6 v_ULTIMATE.start_test_fun_~z_8) (= v_ULTIMATE.start_test_fun_~x_8 (+ v_ULTIMATE.start_test_fun_~x_9 (- 1)))) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_9, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_10, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_8} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_6, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_8, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_9, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_8} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~c~0] 5#L6-2true [2020-07-01 11:48:39,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:39,651 INFO L82 PathProgramCache]: Analyzing trace with hash 67, now seen corresponding path program 1 times [2020-07-01 11:48:39,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:39,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530095234] [2020-07-01 11:48:39,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,733 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:39,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2342, now seen corresponding path program 1 times [2020-07-01 11:48:39,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:39,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114894161] [2020-07-01 11:48:39,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:39,753 INFO L82 PathProgramCache]: Analyzing trace with hash 65768, now seen corresponding path program 1 times [2020-07-01 11:48:39,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:39,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731201141] [2020-07-01 11:48:39,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:39,770 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:39,816 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:48:39,817 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:48:39,817 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:48:39,818 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:48:39,818 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:48:39,818 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:48:39,818 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:48:39,818 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:48:39,818 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:48:39,819 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:48:39,819 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:48:39,837 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 11:48:39,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:48:39,912 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:48:39,913 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 11:48:39,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:48:39,920 INFO L160 nArgumentSynthesizer]: Using integer mode. 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 11:48:39,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:48:39,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:48:39,983 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 11:48:39,984 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_test_fun_~c~0=0} Honda state: {ULTIMATE.start_test_fun_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_test_fun_~c~0=6}, {ULTIMATE.start_test_fun_~c~0=-5}, {ULTIMATE.start_test_fun_~c~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] 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 11:48:40,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:48:40,017 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 11:48:40,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:48:40,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:48:40,405 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:48:40,407 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:48:40,408 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:48:40,408 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:48:40,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:48:40,408 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:48:40,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:48:40,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:48:40,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:48:40,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 11:48:40,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:48:40,409 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:48:40,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-01 11:48:40,415 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 11:48:40,474 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:48:40,480 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 11:48:40,487 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 11:48:40,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:48:40,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:48:40,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:48:40,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:48:40,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:48:40,494 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:48:40,495 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:48:40,499 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 11:48:40,532 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 11:48:40,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:48:40,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:48:40,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:48:40,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:48:40,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:48:40,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:48:40,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:48:40,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:48:40,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:48:40,548 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. 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 11:48:40,557 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:48:40,557 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:48:40,557 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:48:40,558 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~x, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~x - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-07-01 11:48:40,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:48:40,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:48:40,640 INFO L264 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:48:40,641 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:48:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:48:40,654 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:48:40,655 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:48:40,668 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 11:48:40,697 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-07-01 11:48:40,702 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 11:48:40,703 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-07-01 11:48:40,732 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 6 states and 9 transitions. Complement of second has 4 states. [2020-07-01 11:48:40,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:48:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-01 11:48:40,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-07-01 11:48:40,737 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-01 11:48:40,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:40,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-01 11:48:40,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:40,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-01 11:48:40,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:40,745 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 9 transitions. [2020-07-01 11:48:40,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:48:40,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 9 transitions. [2020-07-01 11:48:40,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-07-01 11:48:40,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-07-01 11:48:40,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 9 transitions. [2020-07-01 11:48:40,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-01 11:48:40,752 INFO L688 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-07-01 11:48:40,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 9 transitions. [2020-07-01 11:48:40,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2020-07-01 11:48:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-01 11:48:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-07-01 11:48:40,780 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:48:40,780 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 8 transitions. [2020-07-01 11:48:40,780 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-01 11:48:40,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 8 transitions. [2020-07-01 11:48:40,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 11:48:40,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 11:48:40,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 11:48:40,782 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-01 11:48:40,782 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 11:48:40,782 INFO L794 eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRY [36] ULTIMATE.startENTRY-->L6-2: Formula: (and (= |v_ULTIMATE.start_test_fun_#in~z_1| |v_ULTIMATE.start_main_#t~nondet2_1|) (= v_ULTIMATE.start_test_fun_~x_1 |v_ULTIMATE.start_test_fun_#in~x_1|) (= v_ULTIMATE.start_test_fun_~z_1 |v_ULTIMATE.start_test_fun_#in~z_1|) (= |v_ULTIMATE.start_test_fun_#in~x_1| |v_ULTIMATE.start_main_#t~nondet0_1|) (= v_ULTIMATE.start_test_fun_~c~0_1 0) (= |v_ULTIMATE.start_test_fun_#in~y_1| |v_ULTIMATE.start_main_#t~nondet1_1|) (= v_ULTIMATE.start_test_fun_~y_1 |v_ULTIMATE.start_test_fun_#in~y_1|)) InVars {} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_1, ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_1|, ULTIMATE.start_test_fun_#in~z=|v_ULTIMATE.start_test_fun_#in~z_1|, ULTIMATE.start_test_fun_#in~y=|v_ULTIMATE.start_test_fun_#in~y_1|, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_1, ULTIMATE.start_test_fun_#in~x=|v_ULTIMATE.start_test_fun_#in~x_1|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_test_fun_#res=|v_ULTIMATE.start_test_fun_#res_1|, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_1, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_1|} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_test_fun_~x, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_test_fun_#in~z, ULTIMATE.start_test_fun_#in~y, ULTIMATE.start_test_fun_~z, ULTIMATE.start_test_fun_#in~x, ULTIMATE.start_main_#res, ULTIMATE.start_test_fun_#res, ULTIMATE.start_test_fun_~c~0, ULTIMATE.start_main_#t~ret3] 46#L6-2 [43] L6-2-->L7-2: Formula: (< v_ULTIMATE.start_test_fun_~z_6 v_ULTIMATE.start_test_fun_~x_6) InVars {ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} OutVars{ULTIMATE.start_test_fun_~x=v_ULTIMATE.start_test_fun_~x_6, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_6} AuxVars[] AssignedVars[] 42#L7-2 [2020-07-01 11:48:40,782 INFO L796 eck$LassoCheckResult]: Loop: 42#L7-2 [35] L7-2-->L7-2: Formula: (and (= v_ULTIMATE.start_test_fun_~c~0_3 (+ v_ULTIMATE.start_test_fun_~c~0_4 1)) (= v_ULTIMATE.start_test_fun_~y_4 (+ v_ULTIMATE.start_test_fun_~y_5 (- 1))) (< v_ULTIMATE.start_test_fun_~z_4 v_ULTIMATE.start_test_fun_~y_5)) InVars {ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_5, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_4, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} OutVars{ULTIMATE.start_test_fun_~y=v_ULTIMATE.start_test_fun_~y_4, ULTIMATE.start_test_fun_~c~0=v_ULTIMATE.start_test_fun_~c~0_3, ULTIMATE.start_test_fun_~z=v_ULTIMATE.start_test_fun_~z_4} AuxVars[] AssignedVars[ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~c~0] 42#L7-2 [2020-07-01 11:48:40,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:40,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2120, now seen corresponding path program 1 times [2020-07-01 11:48:40,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:40,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307153928] [2020-07-01 11:48:40,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,793 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash 66, now seen corresponding path program 1 times [2020-07-01 11:48:40,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:40,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342043934] [2020-07-01 11:48:40,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,801 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:40,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:40,801 INFO L82 PathProgramCache]: Analyzing trace with hash 65755, now seen corresponding path program 1 times [2020-07-01 11:48:40,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 11:48:40,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290789146] [2020-07-01 11:48:40,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 11:48:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 11:48:40,814 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 11:48:40,832 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:48:40,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:48:40,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:48:40,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:48:40,833 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 11:48:40,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:48:40,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:48:40,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:48:40,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:48:40,834 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:48:40,834 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:48:40,835 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 11:48:40,842 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 11:48:40,878 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:48:40,878 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:48:40,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 11:48:40,881 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 11:48:40,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 11:48:40,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 11:48:41,174 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-01 11:48:41,177 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 11:48:41,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 11:48:41,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 11:48:41,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 11:48:41,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-01 11:48:41,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:48:41,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 11:48:41,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 11:48:41,189 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-07-01 11:48:41,189 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 11:48:41,190 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 11:48:41,191 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 11:48:41,199 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 11:48:41,228 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 11:48:41,229 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:48:41,232 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 11:48:41,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-01 11:48:41,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-01 11:48:41,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-01 11:48:41,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-01 11:48:41,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-01 11:48:41,237 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-01 11:48:41,237 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-01 11:48:41,242 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-01 11:48:41,245 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-01 11:48:41,256 INFO L444 ModelExtractionUtils]: 1 out of 4 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-01 11:48:41,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-01 11:48:41,262 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-01 11:48:41,263 INFO L510 LassoAnalysis]: Proved termination. [2020-07-01 11:48:41,263 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_fun_~y, ULTIMATE.start_test_fun_~z) = 1*ULTIMATE.start_test_fun_~y - 1*ULTIMATE.start_test_fun_~z Supporting invariants [] [2020-07-01 11:48:41,294 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-01 11:48:41,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 11:48:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:48:41,321 INFO L264 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-01 11:48:41,322 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:48:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-01 11:48:41,327 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-01 11:48:41,328 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-01 11:48:41,328 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 11:48:41,328 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-07-01 11:48:41,328 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 1 loop predicates [2020-07-01 11:48:41,329 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-07-01 11:48:41,345 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 8 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 16 transitions. Complement of second has 6 states. [2020-07-01 11:48:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-01 11:48:41,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-01 11:48:41,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-01 11:48:41,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-01 11:48:41,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:41,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-01 11:48:41,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:41,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-01 11:48:41,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-01 11:48:41,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-07-01 11:48:41,362 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:48:41,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-07-01 11:48:41,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-01 11:48:41,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-01 11:48:41,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-01 11:48:41,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-01 11:48:41,363 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:48:41,363 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:48:41,363 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-01 11:48:41,363 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-01 11:48:41,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-01 11:48:41,363 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-01 11:48:41,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-01 11:48:41,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 11:48:41 BasicIcfg [2020-07-01 11:48:41,370 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 11:48:41,373 INFO L168 Benchmark]: Toolchain (without parser) took 2623.67 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 561.1 MB in the beginning and 476.2 MB in the end (delta: 85.0 MB). Peak memory consumption was 113.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,374 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 11:48:41,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.50 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 561.1 MB in the beginning and 641.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 678.4 MB. Free memory was 641.2 MB in the beginning and 640.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,376 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 678.4 MB. Free memory was 640.2 MB in the beginning and 639.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,377 INFO L168 Benchmark]: RCFGBuilder took 238.18 ms. Allocated memory is still 678.4 MB. Free memory was 639.1 MB in the beginning and 623.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,377 INFO L168 Benchmark]: BlockEncodingV2 took 70.89 ms. Allocated memory is still 678.4 MB. Free memory was 623.5 MB in the beginning and 618.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,378 INFO L168 Benchmark]: TraceAbstraction took 157.21 ms. Allocated memory is still 678.4 MB. Free memory was 617.0 MB in the beginning and 609.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,391 INFO L168 Benchmark]: BuchiAutomizer took 1797.72 ms. Allocated memory is still 678.4 MB. Free memory was 609.1 MB in the beginning and 476.2 MB in the end (delta: 133.0 MB). Peak memory consumption was 133.0 MB. Max. memory is 50.3 GB. [2020-07-01 11:48:41,396 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 583.2 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 297.50 ms. Allocated memory was 649.6 MB in the beginning and 678.4 MB in the end (delta: 28.8 MB). Free memory was 561.1 MB in the beginning and 641.2 MB in the end (delta: -80.1 MB). Peak memory consumption was 27.8 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 678.4 MB. Free memory was 641.2 MB in the beginning and 640.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 678.4 MB. Free memory was 640.2 MB in the beginning and 639.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 238.18 ms. Allocated memory is still 678.4 MB. Free memory was 639.1 MB in the beginning and 623.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 70.89 ms. Allocated memory is still 678.4 MB. Free memory was 623.5 MB in the beginning and 618.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 157.21 ms. Allocated memory is still 678.4 MB. Free memory was 617.0 MB in the beginning and 609.1 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1797.72 ms. Allocated memory is still 678.4 MB. Free memory was 609.1 MB in the beginning and 476.2 MB in the end (delta: 133.0 MB). Peak memory consumption was 133.0 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6]: 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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). One nondeterministic module has affine ranking function x + -1 * z and consists of 3 locations. One nondeterministic module has affine ranking function y + -1 * z and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 12 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-07-01 11:48:35.508 ----------------------------------------------- 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_VcYitt/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 11:48:42.036 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check