./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/trex04_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loops/trex04_true-unreach-call_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebd700d2a774ad3ca11fe220b69fa701cbe412e1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 03:39:31,969 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:39:31,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:39:31,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:39:31,989 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:39:31,990 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:39:31,992 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:39:31,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:39:31,999 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:39:32,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:39:32,003 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:39:32,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:39:32,004 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:39:32,005 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:39:32,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:39:32,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:39:32,008 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:39:32,010 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:39:32,012 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:39:32,014 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:39:32,015 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:39:32,016 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:39:32,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:39:32,019 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:39:32,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:39:32,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:39:32,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:39:32,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:39:32,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:39:32,024 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:39:32,024 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:39:32,025 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:39:32,025 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:39:32,025 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:39:32,026 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:39:32,027 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:39:32,027 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:39:32,052 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:39:32,054 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:39:32,055 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:39:32,056 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:39:32,059 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:39:32,060 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:39:32,060 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:39:32,060 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:39:32,060 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:39:32,061 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:39:32,061 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:39:32,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:39:32,061 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:39:32,061 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:39:32,062 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:39:32,064 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:39:32,064 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:39:32,065 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:39:32,066 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:39:32,066 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:39:32,067 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:39:32,068 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:39:32,068 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:39:32,068 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:39:32,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:39:32,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:39:32,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:39:32,069 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:39:32,069 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:39:32,069 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:39:32,069 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:39:32,070 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:39:32,074 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebd700d2a774ad3ca11fe220b69fa701cbe412e1 [2019-01-14 03:39:32,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:39:32,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:39:32,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:39:32,169 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:39:32,170 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:39:32,171 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/trex04_true-unreach-call_false-termination.i [2019-01-14 03:39:32,234 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583738342/95f88cd5b43042d086a6d2eeddb33acb/FLAGc96f700c0 [2019-01-14 03:39:32,656 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:39:32,657 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/trex04_true-unreach-call_false-termination.i [2019-01-14 03:39:32,663 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583738342/95f88cd5b43042d086a6d2eeddb33acb/FLAGc96f700c0 [2019-01-14 03:39:33,031 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/583738342/95f88cd5b43042d086a6d2eeddb33acb [2019-01-14 03:39:33,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:39:33,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:39:33,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:39:33,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:39:33,044 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:39:33,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536ade24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33, skipping insertion in model container [2019-01-14 03:39:33,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:39:33,079 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:39:33,342 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:39:33,348 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:39:33,372 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:39:33,389 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:39:33,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33 WrapperNode [2019-01-14 03:39:33,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:39:33,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:39:33,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:39:33,392 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:39:33,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:39:33,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:39:33,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:39:33,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:39:33,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... [2019-01-14 03:39:33,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:39:33,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:39:33,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:39:33,451 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:39:33,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:33,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:39:33,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:39:33,978 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:39:33,979 INFO L286 CfgBuilder]: Removed 11 assue(true) statements. [2019-01-14 03:39:33,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:33 BoogieIcfgContainer [2019-01-14 03:39:33,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:39:33,981 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:39:33,981 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:39:33,985 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:39:33,986 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:33,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:39:33" (1/3) ... [2019-01-14 03:39:33,987 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60f0e380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:39:33, skipping insertion in model container [2019-01-14 03:39:33,988 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:33,988 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:33" (2/3) ... [2019-01-14 03:39:33,988 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@60f0e380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:39:33, skipping insertion in model container [2019-01-14 03:39:33,989 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:33,989 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:33" (3/3) ... [2019-01-14 03:39:33,990 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex04_true-unreach-call_false-termination.i [2019-01-14 03:39:34,062 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:39:34,066 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:39:34,066 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:39:34,066 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:39:34,068 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:39:34,068 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:39:34,068 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:39:34,068 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:39:34,069 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:39:34,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-01-14 03:39:34,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 03:39:34,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:39:34,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:39:34,140 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 03:39:34,140 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:39:34,141 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:39:34,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-01-14 03:39:34,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 03:39:34,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:39:34,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:39:34,144 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 03:39:34,144 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:39:34,153 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 13#L23true assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 19#L25true assume !(0 != main_~c1~1 % 256); 14#L25-2true assume !(0 != main_~c2~1 % 256); 4#L26true main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 7#L28true assume !(0 != main_~c1~1 % 256); 6#L28-1true assume !(0 != main_~c2~1 % 256); 9#L30-1true [2019-01-14 03:39:34,154 INFO L796 eck$LassoCheckResult]: Loop: 9#L30-1true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 9#L30-1true [2019-01-14 03:39:34,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:34,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1481824371, now seen corresponding path program 1 times [2019-01-14 03:39:34,162 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:34,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:34,283 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2019-01-14 03:39:34,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:34,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:34,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:34,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:34,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1308084818, now seen corresponding path program 1 times [2019-01-14 03:39:34,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:34,294 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:34,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:34,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:34,543 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:39:34,545 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:39:34,545 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:39:34,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:39:34,545 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:39:34,546 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:34,546 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:39:34,546 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:39:34,546 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2019-01-14 03:39:34,546 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:39:34,547 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:39:34,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:34,973 WARN L181 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2019-01-14 03:39:35,254 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:39:35,255 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,269 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,269 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,319 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,319 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c1~1=0} Honda state: {ULTIMATE.start_main_~c1~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,340 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,341 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,351 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,351 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c2~1=0} Honda state: {ULTIMATE.start_main_~c2~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,372 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,373 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,376 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,377 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,400 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,400 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,417 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,418 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet6=0} Honda state: {ULTIMATE.start_main_#t~nondet6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,446 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,447 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,450 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,450 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,473 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,473 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:35,476 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:35,476 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet8=0} Honda state: {ULTIMATE.start_main_#t~nondet8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:35,500 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:35,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:39:35,528 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:44,252 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:39:44,257 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:39:44,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:39:44,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:39:44,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:39:44,258 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:39:44,258 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:44,258 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:39:44,258 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:39:44,258 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex04_true-unreach-call_false-termination.i_Iteration1_Lasso [2019-01-14 03:39:44,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:39:44,258 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:39:44,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:39:44,565 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-01-14 03:39:44,877 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-14 03:39:45,042 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-14 03:39:45,206 WARN L181 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-01-14 03:39:45,295 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:39:45,301 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:39:45,303 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,304 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:39:45,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,305 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,308 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:39:45,308 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:39:45,312 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,313 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,314 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,314 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:39:45,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,314 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,315 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:39:45,315 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:39:45,316 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,317 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,318 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,323 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 03:39:45,323 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 03:39:45,330 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,331 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,331 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,332 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:39:45,332 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,332 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,332 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,333 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:39:45,333 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:39:45,334 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,334 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,335 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,335 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,335 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,336 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,338 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 03:39:45,338 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 03:39:45,345 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,345 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,346 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,346 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:39:45,347 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,347 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,347 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,348 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:39:45,348 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:39:45,349 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:39:45,349 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 03:39:45,350 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:39:45,350 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:39:45,350 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:39:45,351 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:39:45,354 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 03:39:45,354 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 03:39:45,424 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:39:45,445 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-14 03:39:45,445 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 03:39:45,448 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:39:45,450 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-01-14 03:39:45,451 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:39:45,451 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~d~0 - 1 >= 0] [2019-01-14 03:39:45,466 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-14 03:39:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:39:45,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:39:45,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:39:45,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:39:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:39:45,590 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2019-01-14 03:39:45,592 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-01-14 03:39:45,925 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2019-01-14 03:39:45,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 1 non-accepting loop states 2 accepting loop states [2019-01-14 03:39:45,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 03:39:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2019-01-14 03:39:45,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 1 letters. [2019-01-14 03:39:45,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:39:45,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 1 letters. [2019-01-14 03:39:45,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:39:45,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 7 letters. Loop has 2 letters. [2019-01-14 03:39:45,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:39:45,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2019-01-14 03:39:45,954 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2019-01-14 03:39:45,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 23 states and 37 transitions. [2019-01-14 03:39:45,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2019-01-14 03:39:45,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-01-14 03:39:45,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 37 transitions. [2019-01-14 03:39:45,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:39:45,964 INFO L706 BuchiCegarLoop]: Abstraction has 23 states and 37 transitions. [2019-01-14 03:39:45,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 37 transitions. [2019-01-14 03:39:45,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2019-01-14 03:39:45,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-14 03:39:45,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 34 transitions. [2019-01-14 03:39:45,998 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-01-14 03:39:45,998 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 34 transitions. [2019-01-14 03:39:45,999 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:39:45,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 34 transitions. [2019-01-14 03:39:46,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 03:39:46,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:39:46,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:39:46,002 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 03:39:46,003 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:39:46,003 INFO L794 eck$LassoCheckResult]: Stem: 149#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_~d~0, main_~x~0, main_~c1~1, main_~c2~1;main_~d~0 := 1;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 150#L23 assume !!(main_~x~0 <= 1000000 && main_~x~0 >= -1000000);main_~c1~1 := main_#t~nondet5;havoc main_#t~nondet5;main_~c2~1 := main_#t~nondet6;havoc main_#t~nondet6; 154#L25 assume 0 != main_~c1~1 % 256;main_~d~0 := main_~d~0 - 1; 155#L25-2 assume !(0 != main_~c2~1 % 256); 147#L26 main_~c1~1 := main_#t~nondet7;havoc main_#t~nondet7;main_~c2~1 := main_#t~nondet8;havoc main_#t~nondet8; 148#L28 assume !(0 != main_~c1~1 % 256); 146#L28-1 assume !(0 != main_~c2~1 % 256); 152#L30-1 [2019-01-14 03:39:46,003 INFO L796 eck$LassoCheckResult]: Loop: 152#L30-1 assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~d~0; 152#L30-1 [2019-01-14 03:39:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:46,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1483671413, now seen corresponding path program 1 times [2019-01-14 03:39:46,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:46,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:46,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:46,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:46,041 INFO L82 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 2 times [2019-01-14 03:39:46,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:46,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:46,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:46,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:46,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1250826516, now seen corresponding path program 1 times [2019-01-14 03:39:46,060 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:46,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:46,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,061 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:39:46,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:46,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:39:46 BoogieIcfgContainer [2019-01-14 03:39:46,224 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:39:46,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:39:46,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:39:46,225 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:39:46,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:33" (3/4) ... [2019-01-14 03:39:46,229 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 03:39:46,280 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 03:39:46,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:39:46,282 INFO L168 Benchmark]: Toolchain (without parser) took 13244.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 951.3 MB in the beginning and 928.0 MB in the end (delta: 23.4 MB). Peak memory consumption was 148.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:46,283 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:46,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.34 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:46,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:46,287 INFO L168 Benchmark]: Boogie Preprocessor took 23.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:46,288 INFO L168 Benchmark]: RCFGBuilder took 529.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:46,289 INFO L168 Benchmark]: BuchiAutomizer took 12243.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.0 MB in the end (delta: 171.9 MB). Peak memory consumption was 171.9 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:46,293 INFO L168 Benchmark]: Witness Printer took 55.65 ms. Allocated memory is still 1.2 GB. Free memory is still 928.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:46,298 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.34 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.12 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 529.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12243.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.0 MB in the end (delta: 171.9 MB). Peak memory consumption was 171.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.65 ms. Allocated memory is still 1.2 GB. Free memory is still 928.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function x and consists of 6 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 11.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 46 SDslu, 24 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax100 hnf93 lsp67 ukn100 mio100 lsp100 div219 bol100 ite100 ukn100 eq143 hnf43 smp100 dnf100 smp100 tf100 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 8.8s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 30]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568a9b8a=0, d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6884632a=0, c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cdb67d5=0, c1=0, \result=0, x=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7748388b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@751cab23=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L21] int d = 1; [L22] int x = __VERIFIER_nondet_int(); [L23] COND FALSE !(!(x <= 1000000 && x >= -1000000)) [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L24] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L25] COND TRUE \read(c1) [L25] d = d - 1 [L26] COND FALSE !(\read(c2)) [L27] c1=__VERIFIER_nondet_bool() [L27] c2=__VERIFIER_nondet_bool() [L28] COND FALSE !(\read(c1)) [L29] COND FALSE !(\read(c2)) Loop: [L30] COND TRUE x>0 [L32] x=x-d End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...