NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 04:56:53,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 04:56:53,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 04:56:53,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 04:56:53,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 04:56:53,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 04:56:53,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 04:56:53,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 04:56:53,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 04:56:53,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 04:56:53,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 04:56:53,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 04:56:53,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 04:56:53,974 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 04:56:53,975 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 04:56:53,976 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 04:56:53,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 04:56:53,978 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 04:56:53,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 04:56:53,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 04:56:53,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 04:56:53,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 04:56:53,986 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 04:56:53,986 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 04:56:53,986 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 04:56:53,987 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 04:56:53,987 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 04:56:53,988 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 04:56:53,988 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 04:56:53,989 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 04:56:53,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 04:56:53,990 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 04:56:53,991 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 04:56:53,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 04:56:53,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 04:56:53,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 04:56:53,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 04:56:53,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 04:56:53,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 04:56:53,994 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 04:56:54,009 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 04:56:54,009 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 04:56:54,010 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 04:56:54,010 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 04:56:54,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 04:56:54,010 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:56:54,010 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 04:56:54,011 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 04:56:54,011 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 04:56:54,011 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 04:56:54,011 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 04:56:54,011 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 04:56:54,011 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 04:56:54,012 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 04:56:54,012 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:54,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 04:56:54,012 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 04:56:54,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 04:56:54,012 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 04:56:54,013 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 04:56:54,013 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 04:56:54,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 04:56:54,013 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 04:56:54,013 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 04:56:54,013 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 04:56:54,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 04:56:54,014 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 04:56:54,014 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 04:56:54,014 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 04:56:54,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 04:56:54,052 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 04:56:54,055 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 04:56:54,057 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 04:56:54,057 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 04:56:54,058 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:56:54,122 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/5906c68c7c454fc7b747ebba863ab186/FLAG4b38a398a !SESSION 2020-06-22 04:56:51.660 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.cdt.core 1 0 2020-06-22 04:56:54.386 !MESSAGE Indexed 'FLAG4b38a398a' (0 sources, 0 headers) in 0.006 sec: 0 declarations; 0 references; 0 unresolved inclusions; 0 syntax errors; 0 unresolved names (0%) [2020-06-22 04:56:54,473 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 04:56:54,473 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 04:56:54,480 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/5906c68c7c454fc7b747ebba863ab186/FLAG4b38a398a [2020-06-22 04:56:54,910 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/5906c68c7c454fc7b747ebba863ab186 [2020-06-22 04:56:54,922 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 04:56:54,923 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 04:56:54,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 04:56:54,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 04:56:54,928 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 04:56:54,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:56:54" (1/1) ... [2020-06-22 04:56:54,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35aa3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:54, skipping insertion in model container [2020-06-22 04:56:54,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 04:56:54" (1/1) ... [2020-06-22 04:56:54,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 04:56:54,957 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 04:56:55,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:56:55,110 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 04:56:55,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 04:56:55,192 INFO L195 MainTranslator]: Completed translation [2020-06-22 04:56:55,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55 WrapperNode [2020-06-22 04:56:55,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 04:56:55,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 04:56:55,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 04:56:55,193 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 04:56:55,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 04:56:55,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 04:56:55,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 04:56:55,226 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 04:56:55,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 04:56:55,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 04:56:55,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 04:56:55,244 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 04:56:55,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (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 [2020-06-22 04:56:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 04:56:55,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 04:56:55,425 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 04:56:55,425 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 04:56:55,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:55 BoogieIcfgContainer [2020-06-22 04:56:55,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 04:56:55,427 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 04:56:55,427 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 04:56:55,429 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 04:56:55,430 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:55" (1/1) ... [2020-06-22 04:56:55,443 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 04:56:55,444 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 04:56:55,445 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 04:56:55,446 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 04:56:55,446 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 04:56:55,448 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 04:56:55,449 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 04:56:55,449 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 04:56:55,463 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 04:56:55,470 INFO L200 BlockEncoder]: SBE split 0 edges [2020-06-22 04:56:55,474 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 04:56:55,476 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:56:55,489 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 04:56:55,491 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 04:56:55,492 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 04:56:55,492 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 04:56:55,492 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 04:56:55,493 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 04:56:55,493 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 2 edges [2020-06-22 04:56:55,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:55 BasicIcfg [2020-06-22 04:56:55,493 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 04:56:55,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 04:56:55,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 04:56:55,497 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 04:56:55,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 04:56:54" (1/4) ... [2020-06-22 04:56:55,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b401b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (2/4) ... [2020-06-22 04:56:55,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b401b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:55" (3/4) ... [2020-06-22 04:56:55,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b401b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:55" (4/4) ... [2020-06-22 04:56:55,501 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:56:55,511 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 04:56:55,518 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 04:56:55,534 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 04:56:55,563 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:56:55,564 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 04:56:55,564 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 04:56:55,564 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:56:55,564 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:56:55,564 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:56:55,564 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 04:56:55,565 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:56:55,565 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 04:56:55,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 04:56:55,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 04:56:55,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 04:56:55,635 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 04:56:55,635 INFO L451 ceAbstractionStarter]: At program point L26-2(lines 26 29) the Hoare annotation is: true [2020-06-22 04:56:55,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:55 BasicIcfg [2020-06-22 04:56:55,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 04:56:55,644 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 04:56:55,644 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 04:56:55,647 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 04:56:55,648 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:55,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 04:56:54" (1/5) ... [2020-06-22 04:56:55,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f7810a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,649 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:55,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 04:56:55" (2/5) ... [2020-06-22 04:56:55,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f7810a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,650 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:55,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 04:56:55" (3/5) ... [2020-06-22 04:56:55,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f7810a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,650 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:55,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 04:56:55" (4/5) ... [2020-06-22 04:56:55,651 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f7810a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:55, skipping insertion in model container [2020-06-22 04:56:55,651 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 04:56:55,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 04:56:55" (5/5) ... [2020-06-22 04:56:55,653 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 04:56:55,679 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 04:56:55,679 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 04:56:55,680 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 04:56:55,680 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 04:56:55,680 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 04:56:55,680 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 04:56:55,680 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 04:56:55,680 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 04:56:55,681 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 04:56:55,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 04:56:55,700 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:55,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:55,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:55,705 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:56:55,705 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:56:55,705 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 04:56:55,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 04:56:55,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 04:56:55,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 04:56:55,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 04:56:55,706 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 04:56:55,707 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 04:56:55,711 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [18] ULTIMATE.startENTRY-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 |v_ULTIMATE.start_main_#t~nondet1_4|) (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet1_4|, |v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L26-2true [2020-06-22 04:56:55,712 INFO L796 eck$LassoCheckResult]: Loop: 4#L26-2true [22] L26-2-->L26-2: Formula: (and (= v_ULTIMATE.start_main_~x~0_7 (+ v_ULTIMATE.start_main_~y~0_7 v_ULTIMATE.start_main_~x~0_8)) (= v_ULTIMATE.start_main_~y~0_6 (+ v_ULTIMATE.start_main_~y~0_7 (- 1))) (< v_ULTIMATE.start_main_~x~0_8 0)) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_7, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0] 4#L26-2true [2020-06-22 04:56:55,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:55,718 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2020-06-22 04:56:55,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:55,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:55,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:55,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:55,788 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2020-06-22 04:56:55,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:55,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:55,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:55,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 04:56:55,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 1 times [2020-06-22 04:56:55,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 04:56:55,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 04:56:55,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 04:56:55,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 04:56:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 04:56:55,864 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:55,866 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:55,866 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:55,866 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:55,866 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:55,866 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:55,866 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:55,867 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:55,867 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 04:56:55,867 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:55,867 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:55,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:55,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:55,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:55,989 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:55,990 INFO L412 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 [2020-06-22 04:56:55,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:55,998 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,034 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,035 INFO L448 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 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 [2020-06-22 04:56:56,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,041 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,070 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,070 INFO L448 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 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 [2020-06-22 04:56:56,077 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,077 INFO L163 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 [2020-06-22 04:56:56,108 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:56,108 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,206 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,206 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-8, ULTIMATE.start_main_~x~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~y~0=-1, ULTIMATE.start_main_~x~0=-7}, {ULTIMATE.start_main_~y~0=0, ULTIMATE.start_main_~x~0=-1}] Lambdas: [8, 1, 1] Nus: [0, 1] [2020-06-22 04:56:56,242 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 04:56:56,243 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 04:56:56,243 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 04:56:56,243 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 04:56:56,243 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 04:56:56,243 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 04:56:56,243 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 04:56:56,244 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 04:56:56,244 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Lasso [2020-06-22 04:56:56,244 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 04:56:56,244 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 04:56:56,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 04:56:56,388 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 04:56:56,388 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2020-06-22 04:56:56,393 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,393 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,397 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,397 INFO L448 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 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 [2020-06-22 04:56:56,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,453 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,453 INFO L448 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 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 [2020-06-22 04:56:56,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,462 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,466 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,466 INFO L448 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 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 [2020-06-22 04:56:56,495 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,495 INFO L163 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 [2020-06-22 04:56:56,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 04:56:56,526 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,622 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,623 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-8} Honda state: {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0, ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~x~0=-7, ULTIMATE.start_main_~y~0=-1}, {ULTIMATE.start_main_~x~0=-1, ULTIMATE.start_main_~y~0=0}] Lambdas: [8, 1, 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 [2020-06-22 04:56:56,650 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,650 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,654 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,654 INFO L448 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 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 [2020-06-22 04:56:56,681 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 04:56:56,681 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 04:56:56,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 04:56:56,708 INFO L448 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: [] [2020-06-22 04:56:56,720 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,722 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,722 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,723 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,723 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,724 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,724 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,725 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,725 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,726 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 04:56:56 BasicIcfg [2020-06-22 04:56:56,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 04:56:56,737 INFO L168 Benchmark]: Toolchain (without parser) took 1814.30 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 559.2 MB in the beginning and 515.5 MB in the end (delta: 43.7 MB). Peak memory consumption was 65.2 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,739 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 04:56:56,739 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.33 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 558.1 MB in the beginning and 636.3 MB in the end (delta: -78.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 671.1 MB. Free memory was 636.3 MB in the beginning and 635.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,740 INFO L168 Benchmark]: Boogie Preprocessor took 17.88 ms. Allocated memory is still 671.1 MB. Free memory was 635.2 MB in the beginning and 634.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,741 INFO L168 Benchmark]: RCFGBuilder took 182.88 ms. Allocated memory is still 671.1 MB. Free memory was 634.1 MB in the beginning and 621.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,741 INFO L168 Benchmark]: BlockEncodingV2 took 66.48 ms. Allocated memory is still 671.1 MB. Free memory was 621.5 MB in the beginning and 617.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,742 INFO L168 Benchmark]: TraceAbstraction took 148.89 ms. Allocated memory is still 671.1 MB. Free memory was 616.1 MB in the beginning and 606.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,743 INFO L168 Benchmark]: BuchiAutomizer took 1092.43 ms. Allocated memory is still 671.1 MB. Free memory was 606.4 MB in the beginning and 515.5 MB in the end (delta: 90.9 MB). Peak memory consumption was 90.9 MB. Max. memory is 50.3 GB. [2020-06-22 04:56:56,747 INFO L337 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 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 580.3 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 268.33 ms. Allocated memory was 649.6 MB in the beginning and 671.1 MB in the end (delta: 21.5 MB). Free memory was 558.1 MB in the beginning and 636.3 MB in the end (delta: -78.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.31 ms. Allocated memory is still 671.1 MB. Free memory was 636.3 MB in the beginning and 635.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.88 ms. Allocated memory is still 671.1 MB. Free memory was 635.2 MB in the beginning and 634.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 182.88 ms. Allocated memory is still 671.1 MB. Free memory was 634.1 MB in the beginning and 621.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 66.48 ms. Allocated memory is still 671.1 MB. Free memory was 621.5 MB in the beginning and 617.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 50.3 GB. * TraceAbstraction took 148.89 ms. Allocated memory is still 671.1 MB. Free memory was 616.1 MB in the beginning and 606.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 1092.43 ms. Allocated memory is still 671.1 MB. Free memory was 606.4 MB in the beginning and 515.5 MB in the end (delta: 90.9 MB). Peak memory consumption was 90.9 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 - 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, 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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 26]: Nontermination argument in form of an infinite program execution. [2020-06-22 04:56:56,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,758 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,758 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,758 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,759 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,759 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,760 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,760 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,761 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,761 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,761 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,762 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,763 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,763 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 04:56:56,764 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 04:56:56,764 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, |ULTIMATE.start_main_#t~nondet1|=0, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~y~0=-8, ~unnamed0~0~true=1, ~unnamed0~0~false=0, ULTIMATE.start_main_~x~0=-1} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467b676c=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46459342=0, ~unnamed0~0~false=0, x=-1, y=-8} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467b676c=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46459342=0, ~unnamed0~0~false=0, x=-9, y=-9} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467b676c=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46459342=0, ~unnamed0~0~false=0, x=-18, y=-10} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467b676c=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46459342=0, ~unnamed0~0~false=0, x=-28, y=-11} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@467b676c=0, \result=0, ~unnamed0~0~true=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46459342=0, ~unnamed0~0~false=0, x=-39, y=-12} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 2GEVs Lambdas: [8, 1, 1] Mus: [0, 1] - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() Loop: [L26] COND TRUE x < 0 [L27] x = x + y [L28] y = y - 1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 04:56:56.986 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check