./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer --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 64bit --witnessprinter.graph.data.programhash bbffee41c5a3e36a7439f4e96877154fc3cf2a16 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-aa41828 [2018-11-23 09:01:29,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:01:29,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:01:29,210 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:01:29,210 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:01:29,211 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:01:29,212 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:01:29,213 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:01:29,214 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:01:29,215 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:01:29,215 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:01:29,216 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:01:29,216 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:01:29,217 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:01:29,217 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:01:29,218 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:01:29,218 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:01:29,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:01:29,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:01:29,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:01:29,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:01:29,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:01:29,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:01:29,224 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:01:29,225 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:01:29,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:01:29,226 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:01:29,227 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:01:29,227 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:01:29,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:01:29,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:01:29,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:01:29,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:01:29,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:01:29,230 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:01:29,230 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:01:29,230 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 09:01:29,239 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:01:29,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:01:29,241 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 09:01:29,241 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 09:01:29,241 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 09:01:29,241 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 09:01:29,241 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 09:01:29,241 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 09:01:29,242 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:01:29,242 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 09:01:29,243 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:01:29,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:01:29,244 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 09:01:29,244 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:01:29,244 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 09:01:29,244 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 09:01:29,245 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 09:01:29,245 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2018-11-23 09:01:29,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:01:29,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:01:29,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:01:29,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:01:29,282 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:01:29,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2018-11-23 09:01:29,329 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/data/e1d651f44/bfe36bfc786444b3ad427f8b885a8be8/FLAGdbb75d854 [2018-11-23 09:01:29,727 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:01:29,728 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2018-11-23 09:01:29,731 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/data/e1d651f44/bfe36bfc786444b3ad427f8b885a8be8/FLAGdbb75d854 [2018-11-23 09:01:29,742 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/data/e1d651f44/bfe36bfc786444b3ad427f8b885a8be8 [2018-11-23 09:01:29,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:01:29,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:01:29,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:01:29,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:01:29,748 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:01:29,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29, skipping insertion in model container [2018-11-23 09:01:29,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:01:29,767 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:01:29,868 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:01:29,870 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:01:29,879 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:01:29,887 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:01:29,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29 WrapperNode [2018-11-23 09:01:29,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:01:29,888 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:01:29,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:01:29,888 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:01:29,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:01:29,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:01:29,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:01:29,916 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:01:29,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... [2018-11-23 09:01:29,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:01:29,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:01:29,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:01:29,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:01:29,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/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 [2018-11-23 09:01:30,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:01:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:01:30,103 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:01:30,103 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 09:01:30,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:01:30 BoogieIcfgContainer [2018-11-23 09:01:30,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:01:30,104 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 09:01:30,105 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 09:01:30,108 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 09:01:30,109 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:01:30,109 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 09:01:29" (1/3) ... [2018-11-23 09:01:30,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6896b397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:01:30, skipping insertion in model container [2018-11-23 09:01:30,110 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:01:30,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:01:29" (2/3) ... [2018-11-23 09:01:30,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6896b397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 09:01:30, skipping insertion in model container [2018-11-23 09:01:30,111 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 09:01:30,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:01:30" (3/3) ... [2018-11-23 09:01:30,114 INFO L375 chiAutomizerObserver]: Analyzing ICFG Urban-WST2013-Fig1_false-termination_true-no-overflow.c [2018-11-23 09:01:30,163 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 09:01:30,164 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 09:01:30,164 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 09:01:30,164 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 09:01:30,164 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:01:30,164 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:01:30,165 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 09:01:30,165 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:01:30,165 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 09:01:30,177 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 09:01:30,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:01:30,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:01:30,196 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:01:30,201 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 09:01:30,201 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:01:30,202 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 09:01:30,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 09:01:30,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:01:30,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:01:30,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:01:30,203 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 09:01:30,203 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:01:30,210 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L18-2true [2018-11-23 09:01:30,210 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0 <= 10); 8#L18true assume main_~x~0 > 6;main_~x~0 := 2 + main_~x~0; 5#L18-2true [2018-11-23 09:01:30,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,215 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 09:01:30,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-23 09:01:30,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,308 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-23 09:01:30,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,351 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:01:30,352 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:01:30,352 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:01:30,352 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:01:30,353 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 09:01:30,353 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:01:30,353 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:01:30,353 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:01:30,353 INFO L131 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1_false-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 09:01:30,353 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:01:30,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:01:30,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,487 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:01:30,487 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/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 [2018-11-23 09:01:30,491 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:01:30,491 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:01:30,511 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:01:30,511 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 /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/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 [2018-11-23 09:01:30,514 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:01:30,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:01:30,531 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 09:01:30,531 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 /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/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 [2018-11-23 09:01:30,536 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 09:01:30,536 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/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 [2018-11-23 09:01:30,557 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 09:01:30,557 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 09:01:30,562 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 09:01:30,576 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 09:01:30,576 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 09:01:30,576 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 09:01:30,576 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 09:01:30,576 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 09:01:30,576 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 09:01:30,576 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 09:01:30,576 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 09:01:30,577 INFO L131 ssoRankerPreferences]: Filename of dumped script: Urban-WST2013-Fig1_false-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 09:01:30,577 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 09:01:30,577 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 09:01:30,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 09:01:30,691 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 09:01:30,696 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 09:01:30,697 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 [2018-11-23 09:01:30,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:01:30,699 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:01:30,699 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:01:30,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:01:30,703 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:01:30,704 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:01:30,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:01:30,714 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 [2018-11-23 09:01:30,715 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:01:30,715 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:01:30,715 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:01:30,715 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:01:30,718 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 09:01:30,718 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 09:01:30,726 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 09:01:30,726 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 [2018-11-23 09:01:30,727 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 09:01:30,727 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 09:01:30,728 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 09:01:30,728 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 09:01:30,728 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 09:01:30,729 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 09:01:30,729 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 09:01:30,735 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 09:01:30,741 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 09:01:30,742 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 09:01:30,743 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 09:01:30,744 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 09:01:30,744 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 09:01:30,744 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~x~0 + 11 Supporting invariants [] [2018-11-23 09:01:30,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 09:01:30,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:01:30,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:01:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 09:01:30,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 09:01:30,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 09:01:30,835 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 09:01:30,836 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-23 09:01:30,872 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2018-11-23 09:01:30,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 09:01:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 09:01:30,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2018-11-23 09:01:30,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 09:01:30,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:01:30,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 09:01:30,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:01:30,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 09:01:30,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 09:01:30,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2018-11-23 09:01:30,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:01:30,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2018-11-23 09:01:30,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 09:01:30,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 09:01:30,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-23 09:01:30,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 09:01:30,883 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-23 09:01:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-23 09:01:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-23 09:01:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 09:01:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-23 09:01:30,901 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 09:01:30,901 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 09:01:30,901 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 09:01:30,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-23 09:01:30,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 09:01:30,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 09:01:30,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 09:01:30,902 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 09:01:30,902 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 09:01:30,902 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 64#L18-2 assume !!(main_~x~0 <= 10); 66#L18 [2018-11-23 09:01:30,902 INFO L796 eck$LassoCheckResult]: Loop: 66#L18 assume !(main_~x~0 > 6); 65#L18-2 assume !!(main_~x~0 <= 10); 66#L18 [2018-11-23 09:01:30,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 09:01:30,903 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,903 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2018-11-23 09:01:30,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:01:30,912 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2018-11-23 09:01:30,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 09:01:30,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 09:01:30,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:01:30,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:01:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 09:01:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !(main_~x~0 > 6); [?] assume !!(main_~x~0 <= 10); [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 ----- [2018-11-23 09:01:30,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 09:01:30 BoogieIcfgContainer [2018-11-23 09:01:30,954 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 09:01:30,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 09:01:30,955 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 09:01:30,955 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 09:01:30,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:01:30" (3/4) ... [2018-11-23 09:01:30,958 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !(main_~x~0 > 6); [?] assume !!(main_~x~0 <= 10); [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 ----- [2018-11-23 09:01:30,986 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8c7b74ec-6a36-479b-9f0a-cba0daaff006/bin-2019/uautomizer/witness.graphml [2018-11-23 09:01:30,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 09:01:30,987 INFO L168 Benchmark]: Toolchain (without parser) took 1242.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -80.3 MB). Peak memory consumption was 63.4 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,988 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:01:30,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,988 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,989 INFO L168 Benchmark]: Boogie Preprocessor took 49.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,989 INFO L168 Benchmark]: RCFGBuilder took 138.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,990 INFO L168 Benchmark]: BuchiAutomizer took 849.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2018-11-23 09:01:30,990 INFO L168 Benchmark]: Witness Printer took 31.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 09:01:30,993 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.18 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 27.39 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 138.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 849.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. * Witness Printer took 31.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 -1 * x + 11 and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 18]: 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@3d3e7c08=0, \result=0, x=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !(main_~x~0 > 6); [?] assume !!(main_~x~0 <= 10); [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; [?] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] assume !!(main_~x~0 <= 10); [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet0, main_~x~0; [L15] havoc main_~x~0; [L16] main_~x~0 := main_#t~nondet0; [L16] havoc main_#t~nondet0; [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L15] havoc ~x~0; [L16] ~x~0 := #t~nondet0; [L16] havoc #t~nondet0; [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] assume !(main_~x~0 > 6); [?] assume !!(main_~x~0 <= 10); [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [L18-L20] assume !(main_~x~0 > 6); [L17-L21] assume !!(main_~x~0 <= 10); [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [L18] COND FALSE !(main_~x~0 > 6) [L17-L21] COND FALSE !(!(main_~x~0 <= 10)) [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L18] COND FALSE !(~x~0 > 6) [L17-L21] COND FALSE !(!(~x~0 <= 10)) [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 ----- Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int x; [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x <= 10 Loop: [L18] COND FALSE !(x > 6) [L17] COND TRUE x <= 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...