/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 13:09:37,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-01 13:09:37,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-01 13:09:37,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-01 13:09:37,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-01 13:09:37,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-01 13:09:37,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-01 13:09:37,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-01 13:09:37,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-01 13:09:37,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-01 13:09:37,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-01 13:09:37,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-01 13:09:37,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-01 13:09:37,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-01 13:09:37,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-01 13:09:37,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-01 13:09:37,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-01 13:09:37,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-01 13:09:37,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-01 13:09:37,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-01 13:09:37,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-01 13:09:37,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-01 13:09:37,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-01 13:09:37,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-01 13:09:37,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-01 13:09:37,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-01 13:09:37,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-01 13:09:37,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-01 13:09:37,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-01 13:09:37,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-01 13:09:37,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-01 13:09:37,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-01 13:09:37,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-01 13:09:37,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-01 13:09:37,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-01 13:09:37,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-01 13:09:37,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-01 13:09:37,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-01 13:09:37,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-01 13:09:37,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-01 13:09:37,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-01 13:09:37,384 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-07-01 13:09:37,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-01 13:09:37,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-01 13:09:37,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-01 13:09:37,400 INFO L138 SettingsManager]: * Rewrite not-equals=true [2020-07-01 13:09:37,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-01 13:09:37,400 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:37,400 INFO L138 SettingsManager]: * Use SBE=true [2020-07-01 13:09:37,400 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-01 13:09:37,400 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2020-07-01 13:09:37,401 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:37,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-01 13:09:37,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-01 13:09:37,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-01 13:09:37,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-01 13:09:37,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-01 13:09:37,403 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-07-01 13:09:37,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-01 13:09:37,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-01 13:09:37,403 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-01 13:09:37,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-07-01 13:09:37,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-01 13:09:37,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-01 13:09:37,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-01 13:09:37,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-01 13:09:37,571 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-01 13:09:37,585 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-01 13:09:37,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-01 13:09:37,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-01 13:09:37,590 INFO L275 PluginConnector]: CDTParser initialized [2020-07-01 13:09:37,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:09:37,658 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_AFmXuj/tmp/204cbbece5874e1b922c7d2630ab9fc3/FLAG38fddab7c [2020-07-01 13:09:37,985 INFO L306 CDTParser]: Found 1 translation units. [2020-07-01 13:09:37,986 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-07-01 13:09:37,993 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/BenchExec_run_AFmXuj/tmp/204cbbece5874e1b922c7d2630ab9fc3/FLAG38fddab7c [2020-07-01 13:09:38,422 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/BenchExec_run_AFmXuj/tmp/204cbbece5874e1b922c7d2630ab9fc3 [2020-07-01 13:09:38,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-01 13:09:38,435 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-07-01 13:09:38,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:38,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-01 13:09:38,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-01 13:09:38,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a07f3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38, skipping insertion in model container [2020-07-01 13:09:38,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,452 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-01 13:09:38,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-01 13:09:38,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:38,685 INFO L203 MainTranslator]: Completed pre-run [2020-07-01 13:09:38,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-01 13:09:38,715 INFO L208 MainTranslator]: Completed translation [2020-07-01 13:09:38,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38 WrapperNode [2020-07-01 13:09:38,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-01 13:09:38,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:38,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-01 13:09:38,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-01 13:09:38,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-01 13:09:38,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-01 13:09:38,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-01 13:09:38,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-01 13:09:38,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (1/1) ... [2020-07-01 13:09:38,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-01 13:09:38,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-01 13:09:38,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-01 13:09:38,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-01 13:09:38,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (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 13:09:38,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-01 13:09:38,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-01 13:09:39,006 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-01 13:09:39,007 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-01 13:09:39,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39 BoogieIcfgContainer [2020-07-01 13:09:39,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-01 13:09:39,011 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-07-01 13:09:39,011 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-07-01 13:09:39,014 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2020-07-01 13:09:39,014 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (1/1) ... [2020-07-01 13:09:39,027 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-07-01 13:09:39,029 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-07-01 13:09:39,029 INFO L263 BlockEncoder]: Using Maximize final states [2020-07-01 13:09:39,030 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-07-01 13:09:39,030 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-07-01 13:09:39,032 INFO L296 BlockEncoder]: Using Remove sink states [2020-07-01 13:09:39,033 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-07-01 13:09:39,033 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-07-01 13:09:39,047 INFO L185 BlockEncoder]: Using Use SBE [2020-07-01 13:09:39,061 INFO L200 BlockEncoder]: SBE split 1 edges [2020-07-01 13:09:39,066 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-07-01 13:09:39,068 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:39,078 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-07-01 13:09:39,081 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-07-01 13:09:39,082 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-07-01 13:09:39,082 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-07-01 13:09:39,082 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-07-01 13:09:39,083 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-07-01 13:09:39,083 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-07-01 13:09:39,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39 BasicIcfg [2020-07-01 13:09:39,084 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-07-01 13:09:39,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-01 13:09:39,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-01 13:09:39,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-01 13:09:39,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.07 01:09:38" (1/4) ... [2020-07-01 13:09:39,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (2/4) ... [2020-07-01 13:09:39,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (3/4) ... [2020-07-01 13:09:39,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116f811b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39" (4/4) ... [2020-07-01 13:09:39,093 INFO L109 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:39,104 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-07-01 13:09:39,111 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-01 13:09:39,126 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-01 13:09:39,151 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-01 13:09:39,151 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-01 13:09:39,151 INFO L377 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:39,152 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:39,152 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:39,152 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-01 13:09:39,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:39,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-01 13:09:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-07-01 13:09:39,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-01 13:09:39,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-07-01 13:09:39,229 INFO L271 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: true [2020-07-01 13:09:39,230 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-01 13:09:39,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39 BasicIcfg [2020-07-01 13:09:39,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-01 13:09:39,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-01 13:09:39,239 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-01 13:09:39,242 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-01 13:09:39,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.07 01:09:38" (1/5) ... [2020-07-01 13:09:39,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9a6420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.07 01:09:38" (2/5) ... [2020-07-01 13:09:39,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9a6420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,245 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:09:39" (3/5) ... [2020-07-01 13:09:39,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9a6420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 01.07 01:09:39" (4/5) ... [2020-07-01 13:09:39,246 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2f9a6420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:39, skipping insertion in model container [2020-07-01 13:09:39,246 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-01 13:09:39,246 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:09:39" (5/5) ... [2020-07-01 13:09:39,248 INFO L371 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-07-01 13:09:39,277 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-01 13:09:39,277 INFO L357 BuchiCegarLoop]: Hoare is true [2020-07-01 13:09:39,277 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-01 13:09:39,277 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-01 13:09:39,277 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-01 13:09:39,277 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-01 13:09:39,278 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-01 13:09:39,278 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-01 13:09:39,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 13:09:39,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:09:39,299 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:39,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:39,305 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:39,305 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 13:09:39,305 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-01 13:09:39,305 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-01 13:09:39,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-01 13:09:39,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-01 13:09:39,306 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-01 13:09:39,306 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-01 13:09:39,306 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-01 13:09:39,311 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue [22] ULTIMATE.startENTRY-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~a~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_1, ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~b~0] 3#L17-2true [2020-07-01 13:09:39,312 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true [20] L17-2-->L17-2: Formula: (and (= v_ULTIMATE.start_main_~b~0_7 (* v_ULTIMATE.start_main_~b~0_8 3)) (<= 1 v_ULTIMATE.start_main_~b~0_8) (<= 1 v_ULTIMATE.start_main_~a~0_8) (= v_ULTIMATE.start_main_~a~0_7 (* v_ULTIMATE.start_main_~a~0_8 2))) InVars {ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_8, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_8} OutVars{ULTIMATE.start_main_~b~0=v_ULTIMATE.start_main_~b~0_7, ULTIMATE.start_main_~a~0=v_ULTIMATE.start_main_~a~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~b~0] 3#L17-2true [2020-07-01 13:09:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,318 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-07-01 13:09:39,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591199332] [2020-07-01 13:09:39,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,401 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:39,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,403 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-07-01 13:09:39,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954696363] [2020-07-01 13:09:39,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,420 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:39,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-01 13:09:39,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1663, now seen corresponding path program 1 times [2020-07-01 13:09:39,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-01 13:09:39,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055548554] [2020-07-01 13:09:39,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-01 13:09:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-01 13:09:39,435 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-01 13:09:39,488 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:39,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:39,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:39,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:39,490 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:39,490 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,490 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:39,490 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:39,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-07-01 13:09:39,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:39,491 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:39,510 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 13:09:39,520 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 13:09:39,525 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 13:09:39,535 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 13:09:39,637 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:39,638 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 13:09:39,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,656 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 13:09:39,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,697 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,697 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 13:09:39,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,732 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 13:09:39,770 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:39,770 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,783 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=15} Honda state: {ULTIMATE.start_main_~b~0=15} Generalized eigenvectors: [{ULTIMATE.start_main_~b~0=10}, {ULTIMATE.start_main_~b~0=13}, {ULTIMATE.start_main_~b~0=7}] Lambdas: [3, 3, 3] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:39,818 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:39,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:39,871 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:39,871 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0=16} Honda state: {ULTIMATE.start_main_~a~0=16} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0=14}, {ULTIMATE.start_main_~a~0=2}, {ULTIMATE.start_main_~a~0=0}] Lambdas: [2, 2, 1] Nus: [0, 1] [2020-07-01 13:09:39,920 INFO L210 LassoAnalysis]: Preferences: [2020-07-01 13:09:39,920 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-01 13:09:39,920 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-01 13:09:39,920 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-01 13:09:39,920 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-01 13:09:39,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:39,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-01 13:09:39,921 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-01 13:09:39,921 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-07-01 13:09:39,921 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-01 13:09:39,921 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-01 13:09:39,923 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 13:09:39,928 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 13:09:39,936 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 13:09:39,939 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 13:09:39,943 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 13:09:39,948 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 13:09:39,952 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 13:09:40,056 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-01 13:09:40,056 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,072 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,073 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 13:09:40,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,108 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 13:09:40,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:40,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,160 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0=16} Honda state: {ULTIMATE.start_main_~a~0=16} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0=14}, {ULTIMATE.start_main_~a~0=2}, {ULTIMATE.start_main_~a~0=0}] Lambdas: [2, 2, 1] Nus: [0, 1] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,199 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,199 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,237 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,237 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,314 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,314 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-01 13:09:40,348 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-07-01 13:09:40,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-01 13:09:40,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-01 13:09:40,399 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-01 13:09:40,399 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=15} Honda state: {ULTIMATE.start_main_~b~0=15} Generalized eigenvectors: [{ULTIMATE.start_main_~b~0=10}, {ULTIMATE.start_main_~b~0=13}, {ULTIMATE.start_main_~b~0=7}] Lambdas: [3, 3, 3] Nus: [0, 0] [2020-07-01 13:09:40,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,443 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,443 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.07 01:09:40 BasicIcfg [2020-07-01 13:09:40,455 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-01 13:09:40,458 INFO L168 Benchmark]: Toolchain (without parser) took 2022.30 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 556.1 MB in the beginning and 505.4 MB in the end (delta: 50.7 MB). Peak memory consumption was 86.9 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,459 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-07-01 13:09:40,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.50 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 556.1 MB in the beginning and 650.2 MB in the end (delta: -94.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.27 ms. Allocated memory is still 685.8 MB. Free memory was 650.2 MB in the beginning and 648.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,461 INFO L168 Benchmark]: Boogie Preprocessor took 19.28 ms. Allocated memory is still 685.8 MB. Free memory was 648.9 MB in the beginning and 647.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,461 INFO L168 Benchmark]: RCFGBuilder took 240.11 ms. Allocated memory is still 685.8 MB. Free memory was 647.5 MB in the beginning and 633.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,462 INFO L168 Benchmark]: BlockEncodingV2 took 72.85 ms. Allocated memory is still 685.8 MB. Free memory was 633.2 MB in the beginning and 629.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,463 INFO L168 Benchmark]: TraceAbstraction took 153.74 ms. Allocated memory is still 685.8 MB. Free memory was 627.8 MB in the beginning and 619.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,463 INFO L168 Benchmark]: BuchiAutomizer took 1216.33 ms. Allocated memory is still 685.8 MB. Free memory was 619.7 MB in the beginning and 505.4 MB in the end (delta: 114.3 MB). Peak memory consumption was 114.3 MB. Max. memory is 50.3 GB. [2020-07-01 13:09:40,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 2 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 577.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 279.50 ms. Allocated memory was 649.6 MB in the beginning and 685.8 MB in the end (delta: 36.2 MB). Free memory was 556.1 MB in the beginning and 650.2 MB in the end (delta: -94.1 MB). Peak memory consumption was 28.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.27 ms. Allocated memory is still 685.8 MB. Free memory was 650.2 MB in the beginning and 648.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 19.28 ms. Allocated memory is still 685.8 MB. Free memory was 648.9 MB in the beginning and 647.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. * RCFGBuilder took 240.11 ms. Allocated memory is still 685.8 MB. Free memory was 647.5 MB in the beginning and 633.2 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.85 ms. Allocated memory is still 685.8 MB. Free memory was 633.2 MB in the beginning and 629.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 50.3 GB. * TraceAbstraction took 153.74 ms. Allocated memory is still 685.8 MB. Free memory was 627.8 MB in the beginning and 619.7 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1216.33 ms. Allocated memory is still 685.8 MB. Free memory was 619.7 MB in the beginning and 505.4 MB in the end (delta: 114.3 MB). Peak memory consumption was 114.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. [2020-07-01 13:09:40,479 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-07-01 13:09:40,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-07-01 13:09:40,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution State at position 0 is {a=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67b875f5=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79d1c952=0, b=15, ~unnamed0~0~false=0} State at position 1 is {a=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67b875f5=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79d1c952=0, b=15, ~unnamed0~0~false=0} For i>1, the state at position i is {a=16 + sum_{k=0}^i 14*2^k + 2*2^k, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67b875f5=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, ~unnamed0~0~true=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79d1c952=0 + sum_{k=0}^i 0, b=15 + sum_{k=0}^i 10*3^k + 13*3^k + 7*3^k, ~unnamed0~0~false=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 5GEVs Lambdas: [2, 2, 1, 3, 3, 3] Mus: [0, 1, 0, 0, 0] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L14] int a, b; [L15] a = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() Loop: [L17] COND TRUE a >= 1 && b >= 1 [L18] a = 2*a [L19] b = 3*b End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-07-01 13:09:35.155 ----------------------------------------------- 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_AFmXuj/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-07-01 13:09:40.710 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check