./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/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 1be465c325e488658b014d302be974cdfc478282 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:36:50,219 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:36:50,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:36:50,227 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:36:50,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:36:50,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:36:50,228 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:36:50,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:36:50,231 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:36:50,231 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:36:50,232 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:36:50,232 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:36:50,233 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:36:50,233 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:36:50,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:36:50,234 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:36:50,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:36:50,236 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:36:50,237 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:36:50,238 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:36:50,239 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:36:50,240 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:36:50,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:36:50,242 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:36:50,242 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:36:50,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:36:50,243 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:36:50,244 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:36:50,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:36:50,245 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:36:50,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:36:50,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:36:50,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:36:50,246 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:36:50,246 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:36:50,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:36:50,247 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 10:36:50,258 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:36:50,258 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:36:50,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:36:50,259 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:36:50,259 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:36:50,259 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:36:50,259 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:36:50,259 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:36:50,259 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:36:50,260 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:36:50,260 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:36:50,261 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:36:50,261 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:36:50,262 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:36:50,262 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:36:50,262 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:36:50,262 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:36:50,263 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:36:50,263 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_b209896b-b09e-4a40-8e56-e62f32571ed6/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 -> 1be465c325e488658b014d302be974cdfc478282 [2018-11-28 10:36:50,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:36:50,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:36:50,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:36:50,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:36:50,295 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:36:50,296 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet_true-termination_true-valid-memsafety.c [2018-11-28 10:36:50,332 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/data/17e6169e0/caf536bd01d54e02b460930f46d21f1f/FLAG19b878d98 [2018-11-28 10:36:50,727 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:36:50,728 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/sv-benchmarks/c/termination-crafted/Benghazi_nondet_true-termination_true-valid-memsafety.c [2018-11-28 10:36:50,731 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/data/17e6169e0/caf536bd01d54e02b460930f46d21f1f/FLAG19b878d98 [2018-11-28 10:36:50,741 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/bin-2019/uautomizer/data/17e6169e0/caf536bd01d54e02b460930f46d21f1f [2018-11-28 10:36:50,743 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:36:50,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:36:50,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:36:50,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:36:50,747 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:36:50,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a7765c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50, skipping insertion in model container [2018-11-28 10:36:50,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:36:50,763 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:36:50,848 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:36:50,850 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:36:50,859 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:36:50,867 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:36:50,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50 WrapperNode [2018-11-28 10:36:50,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:36:50,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:36:50,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:36:50,868 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:36:50,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:36:50,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:36:50,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:36:50,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:36:50,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... [2018-11-28 10:36:50,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:36:50,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:36:50,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:36:50,901 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:36:50,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/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 [2018-11-28 10:36:50,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:36:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:36:51,079 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:36:51,079 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 10:36:51,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:36:51 BoogieIcfgContainer [2018-11-28 10:36:51,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:36:51,080 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:36:51,080 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:36:51,083 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:36:51,083 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:36:51,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:36:50" (1/3) ... [2018-11-28 10:36:51,084 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31574b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:36:51, skipping insertion in model container [2018-11-28 10:36:51,084 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:36:51,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:36:50" (2/3) ... [2018-11-28 10:36:51,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31574b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:36:51, skipping insertion in model container [2018-11-28 10:36:51,085 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:36:51,085 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:36:51" (3/3) ... [2018-11-28 10:36:51,086 INFO L375 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet_true-termination_true-valid-memsafety.c [2018-11-28 10:36:51,123 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:36:51,124 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:36:51,124 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:36:51,124 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:36:51,124 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:36:51,124 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:36:51,124 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:36:51,124 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:36:51,124 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:36:51,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 10:36:51,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 10:36:51,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:36:51,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:36:51,151 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 10:36:51,152 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 10:36:51,152 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:36:51,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 10:36:51,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 10:36:51,153 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:36:51,153 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:36:51,153 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 10:36:51,153 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 10:36:51,158 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~d1~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d2~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L18true assume !!(-1048575 <= main_~x~0 && main_~x~0 <= 1048575); 8#L19true assume !!(-1048575 <= main_~d1~0 && main_~d1~0 <= 1048575); 11#L20true assume !!(-1048575 <= main_~d2~0 && main_~d2~0 <= 1048575); 10#L21-2true [2018-11-28 10:36:51,158 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 10#L21-2true [2018-11-28 10:36:51,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:36:51,163 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2018-11-28 10:36:51,164 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:36:51,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:36:51,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:36:51,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:36:51,234 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2018-11-28 10:36:51,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:36:51,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:36:51,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:36:51,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:36:51,246 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2018-11-28 10:36:51,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:36:51,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:36:51,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:36:51,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:36:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:36:51,334 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:36:51,335 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:36:51,335 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:36:51,335 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:36:51,335 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 10:36:51,335 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:36:51,336 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:36:51,336 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:36:51,336 INFO L131 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 10:36:51,336 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:36:51,336 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:36:51,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:51,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:51,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:51,493 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:36:51,494 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/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 [2018-11-28 10:36:51,503 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:36:51,503 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:36:51,525 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:36:51,525 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_b209896b-b09e-4a40-8e56-e62f32571ed6/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 [2018-11-28 10:36:51,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:36:51,528 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:36:51,542 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 10:36:51,542 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_b209896b-b09e-4a40-8e56-e62f32571ed6/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 [2018-11-28 10:36:51,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 10:36:51,546 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b209896b-b09e-4a40-8e56-e62f32571ed6/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 [2018-11-28 10:36:51,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 10:36:51,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 10:36:53,998 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 10:36:53,999 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 10:36:54,000 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 10:36:54,000 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 10:36:54,000 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 10:36:54,000 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 10:36:54,000 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 10:36:54,000 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 10:36:54,000 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 10:36:54,000 INFO L131 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-28 10:36:54,000 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 10:36:54,000 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 10:36:54,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:54,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:54,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 10:36:54,053 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 10:36:54,056 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 10:36:54,057 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 [2018-11-28 10:36:54,058 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,058 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:36:54,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,059 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:36:54,062 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 10:36:54,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:36:54,072 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,073 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 [2018-11-28 10:36:54,073 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,074 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,074 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:36:54,076 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:36:54,076 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:36:54,079 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,080 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 [2018-11-28 10:36:54,080 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,081 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,081 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,081 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 10:36:54,084 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 10:36:54,084 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 10:36:54,089 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,090 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-28 10:36:54,090 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 [2018-11-28 10:36:54,090 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,091 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:36:54,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,091 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 10:36:54,092 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-28 10:36:54,092 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:36:54,107 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,108 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 [2018-11-28 10:36:54,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,109 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,110 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 10:36:54,112 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 10:36:54,112 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 10:36:54,116 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,116 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 [2018-11-28 10:36:54,117 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,117 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,117 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,117 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 10:36:54,120 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 10:36:54,120 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 10:36:54,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 10:36:54,126 INFO L497 LassoAnalysis]: Using template '3-nested'. [2018-11-28 10:36:54,126 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 [2018-11-28 10:36:54,127 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 10:36:54,127 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 10:36:54,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 10:36:54,128 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 10:36:54,128 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 10:36:54,130 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 10:36:54,130 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 10:36:54,144 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 10:36:54,155 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 10:36:54,156 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 10:36:54,157 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 10:36:54,158 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 10:36:54,158 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 10:36:54,159 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0 - 1*ULTIMATE.start_main_~d2~0 f1 = 2*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~d1~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-28 10:36:54,160 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 10:36:54,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:36:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:36:54,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:36:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:36:54,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:36:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:36:54,232 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 10:36:54,233 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2018-11-28 10:36:54,259 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2018-11-28 10:36:54,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 10:36:54,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 10:36:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-28 10:36:54,262 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 10:36:54,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:36:54,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2018-11-28 10:36:54,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:36:54,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 10:36:54,263 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 10:36:54,264 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2018-11-28 10:36:54,265 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:36:54,267 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2018-11-28 10:36:54,267 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 10:36:54,268 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 10:36:54,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 10:36:54,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:36:54,268 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:36:54,268 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:36:54,268 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:36:54,268 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:36:54,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:36:54,269 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 10:36:54,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 10:36:54,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:36:54 BoogieIcfgContainer [2018-11-28 10:36:54,273 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:36:54,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:36:54,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:36:54,273 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:36:54,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:36:51" (3/4) ... [2018-11-28 10:36:54,276 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 10:36:54,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:36:54,276 INFO L168 Benchmark]: Toolchain (without parser) took 3532.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -76.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:36:54,277 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:36:54,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:36:54,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.53 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:36:54,278 INFO L168 Benchmark]: Boogie Preprocessor took 13.40 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:36:54,279 INFO L168 Benchmark]: RCFGBuilder took 179.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:36:54,279 INFO L168 Benchmark]: BuchiAutomizer took 3192.33 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: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:36:54,280 INFO L168 Benchmark]: Witness Printer took 2.70 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. [2018-11-28 10:36:54,283 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 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 19.53 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.40 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 179.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3192.33 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: 98.4 MB). Peak memory consumption was 98.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 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). One deterministic module has 3-nested ranking function (if -1 * d1 + -1 * d2 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d1 + -1 * d2 > 0 then -1 * d1 + -1 * d2 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...