./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 32bit --witnessprinter.graph.data.programhash a94bf9d893e116ed4626eae9cec69d948eb5bc31 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 07:58:34,198 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 07:58:34,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 07:58:34,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 07:58:34,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 07:58:34,209 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 07:58:34,210 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 07:58:34,211 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 07:58:34,212 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 07:58:34,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 07:58:34,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 07:58:34,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 07:58:34,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 07:58:34,215 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 07:58:34,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 07:58:34,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 07:58:34,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 07:58:34,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 07:58:34,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 07:58:34,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 07:58:34,222 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 07:58:34,223 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 07:58:34,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 07:58:34,225 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 07:58:34,225 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 07:58:34,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 07:58:34,226 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 07:58:34,227 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 07:58:34,227 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 07:58:34,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 07:58:34,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 07:58:34,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 07:58:34,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 07:58:34,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 07:58:34,229 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 07:58:34,230 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 07:58:34,230 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 07:58:34,241 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 07:58:34,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 07:58:34,242 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 07:58:34,242 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 07:58:34,243 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 07:58:34,243 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 07:58:34,244 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 07:58:34,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 07:58:34,245 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 07:58:34,245 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 07:58:34,246 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 07:58:34,246 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 07:58:34,246 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 07:58:34,246 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 07:58:34,246 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 07:58:34,246 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 07:58:34,246 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_965c13dc-05f9-4621-bdba-7442aad7c29f/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2018-12-02 07:58:34,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 07:58:34,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 07:58:34,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 07:58:34,282 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 07:58:34,283 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 07:58:34,283 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-12-02 07:58:34,317 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/data/70c16879d/e0b4580cecbb4c24bea895265da36887/FLAG95c04599c [2018-12-02 07:58:34,672 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 07:58:34,673 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/sv-benchmarks/c/loop-invgen/fragtest_simple_true-unreach-call_true-termination.i [2018-12-02 07:58:34,676 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/data/70c16879d/e0b4580cecbb4c24bea895265da36887/FLAG95c04599c [2018-12-02 07:58:34,684 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/data/70c16879d/e0b4580cecbb4c24bea895265da36887 [2018-12-02 07:58:34,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 07:58:34,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 07:58:34,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 07:58:34,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 07:58:34,689 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 07:58:34,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd40c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34, skipping insertion in model container [2018-12-02 07:58:34,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 07:58:34,704 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 07:58:34,786 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:58:34,789 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 07:58:34,798 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:58:34,806 INFO L195 MainTranslator]: Completed translation [2018-12-02 07:58:34,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34 WrapperNode [2018-12-02 07:58:34,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 07:58:34,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 07:58:34,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 07:58:34,807 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 07:58:34,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 07:58:34,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 07:58:34,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 07:58:34,825 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 07:58:34,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... [2018-12-02 07:58:34,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 07:58:34,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 07:58:34,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 07:58:34,868 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 07:58:34,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 [2018-12-02 07:58:34,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 07:58:34,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 07:58:35,001 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 07:58:35,002 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-02 07:58:35,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35 BoogieIcfgContainer [2018-12-02 07:58:35,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 07:58:35,002 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 07:58:35,002 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 07:58:35,006 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 07:58:35,006 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 07:58:35,007 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 07:58:34" (1/3) ... [2018-12-02 07:58:35,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc3452a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:58:35, skipping insertion in model container [2018-12-02 07:58:35,008 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 07:58:35,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:58:34" (2/3) ... [2018-12-02 07:58:35,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cc3452a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:58:35, skipping insertion in model container [2018-12-02 07:58:35,008 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 07:58:35,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35" (3/3) ... [2018-12-02 07:58:35,010 INFO L375 chiAutomizerObserver]: Analyzing ICFG fragtest_simple_true-unreach-call_true-termination.i [2018-12-02 07:58:35,058 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 07:58:35,059 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 07:58:35,059 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 07:58:35,059 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 07:58:35,059 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 07:58:35,059 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 07:58:35,059 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 07:58:35,059 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 07:58:35,060 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 07:58:35,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-02 07:58:35,090 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-02 07:58:35,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 07:58:35,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 07:58:35,095 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 07:58:35,095 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 07:58:35,095 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 07:58:35,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-12-02 07:58:35,097 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-02 07:58:35,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 07:58:35,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 07:58:35,097 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-02 07:58:35,097 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 07:58:35,103 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L17-2true [2018-12-02 07:58:35,103 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2;main_~i~0 := 1 + main_~i~0; 3#L17-2true [2018-12-02 07:58:35,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,107 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-02 07:58:35,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,167 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-12-02 07:58:35,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,174 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-02 07:58:35,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,223 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:35,224 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:35,224 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:35,224 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:35,224 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 07:58:35,224 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,224 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:35,224 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:35,225 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 07:58:35,225 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:35,225 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:35,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,278 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:35,278 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 [2018-12-02 07:58:35,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 07:58:35,281 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 [2018-12-02 07:58:35,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 07:58:35,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 07:58:35,314 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 07:58:35,315 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:35,315 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:35,316 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:35,316 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:35,316 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 07:58:35,316 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,316 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:35,316 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:35,316 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration1_Loop [2018-12-02 07:58:35,316 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:35,316 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:35,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,342 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:35,346 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 07:58:35,347 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 [2018-12-02 07:58:35,348 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 07:58:35,348 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 07:58:35,349 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 07:58:35,349 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 07:58:35,349 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 07:58:35,350 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 07:58:35,350 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 07:58:35,355 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 07:58:35,360 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 07:58:35,360 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 07:58:35,361 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 07:58:35,361 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 07:58:35,362 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 07:58:35,362 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-12-02 07:58:35,363 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 07:58:35,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:35,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:58:35,406 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 [2018-12-02 07:58:35,407 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 2 states. [2018-12-02 07:58:35,436 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 2 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-12-02 07:58:35,436 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 [2018-12-02 07:58:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 07:58:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-12-02 07:58:35,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2018-12-02 07:58:35,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-02 07:58:35,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-02 07:58:35,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-12-02 07:58:35,441 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-02 07:58:35,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 18 transitions. [2018-12-02 07:58:35,444 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-12-02 07:58:35,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-12-02 07:58:35,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 18 transitions. [2018-12-02 07:58:35,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 07:58:35,445 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-02 07:58:35,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 18 transitions. [2018-12-02 07:58:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-02 07:58:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-02 07:58:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-12-02 07:58:35,461 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-02 07:58:35,461 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-12-02 07:58:35,461 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 07:58:35,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-12-02 07:58:35,461 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-02 07:58:35,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 07:58:35,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 07:58:35,462 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-12-02 07:58:35,462 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-02 07:58:35,462 INFO L794 eck$LassoCheckResult]: Stem: 83#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 76#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 77#L17-3 assume !(main_~i~0 > main_~pvlen~0); 87#L20-1 main_~i~0 := 0; 84#L24-2 [2018-12-02 07:58:35,462 INFO L796 eck$LassoCheckResult]: Loop: 84#L24-2 assume !!(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3;main_~tmp___1~0 := main_~i~0;main_~i~0 := 1 + main_~i~0;main_~k~0 := 1 + main_~k~0; 84#L24-2 [2018-12-02 07:58:35,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,462 INFO L82 PathProgramCache]: Analyzing trace with hash 961578, now seen corresponding path program 1 times [2018-12-02 07:58:35,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2018-12-02 07:58:35,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,471 INFO L82 PathProgramCache]: Analyzing trace with hash 29808947, now seen corresponding path program 1 times [2018-12-02 07:58:35,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,498 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:35,499 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:35,499 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:35,499 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:35,499 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 07:58:35,499 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,499 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:35,499 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:35,499 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 07:58:35,499 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:35,499 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:35,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,531 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:35,531 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 [2018-12-02 07:58:35,532 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 07:58:35,532 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/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 [2018-12-02 07:58:35,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 07:58:35,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 07:58:35,572 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 07:58:35,573 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:35,573 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:35,574 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:35,574 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:35,574 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 07:58:35,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:35,574 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:35,574 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration2_Loop [2018-12-02 07:58:35,574 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:35,574 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:35,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,615 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:35,615 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 07:58:35,615 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 [2018-12-02 07:58:35,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 07:58:35,616 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 07:58:35,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 07:58:35,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 07:58:35,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 07:58:35,617 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 07:58:35,617 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 07:58:35,621 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 07:58:35,624 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 07:58:35,624 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-02 07:58:35,624 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 07:58:35,624 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 07:58:35,624 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 07:58:35,624 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 2000001 Supporting invariants [] [2018-12-02 07:58:35,624 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 07:58:35,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:58:35,641 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 [2018-12-02 07:58:35,642 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 2 states. [2018-12-02 07:58:35,650 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 2 states. Result 28 states and 39 transitions. Complement of second has 6 states. [2018-12-02 07:58:35,650 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 [2018-12-02 07:58:35,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-02 07:58:35,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-12-02 07:58:35,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-02 07:58:35,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,651 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2018-12-02 07:58:35,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,652 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2018-12-02 07:58:35,652 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:35,652 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 39 transitions. [2018-12-02 07:58:35,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-02 07:58:35,653 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 16 states and 22 transitions. [2018-12-02 07:58:35,653 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-02 07:58:35,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-12-02 07:58:35,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2018-12-02 07:58:35,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 07:58:35,654 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-12-02 07:58:35,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2018-12-02 07:58:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-12-02 07:58:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-02 07:58:35,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2018-12-02 07:58:35,655 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-12-02 07:58:35,655 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2018-12-02 07:58:35,655 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-02 07:58:35,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2018-12-02 07:58:35,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-02 07:58:35,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 07:58:35,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 07:58:35,656 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:58:35,656 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-02 07:58:35,657 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~i~0, main_~pvlen~0, main_~tmp___1~0, main_~k~0, main_~n~0, main_~j~0;havoc main_~i~0;havoc main_~pvlen~0;havoc main_~tmp___1~0;main_~k~0 := 0;havoc main_~n~0;main_~i~0 := 0;main_~pvlen~0 := main_#t~nondet1;havoc main_#t~nondet1; 152#L17-2 assume !(0 != main_#t~nondet2 && main_~i~0 <= 1000000);havoc main_#t~nondet2; 153#L17-3 assume !(main_~i~0 > main_~pvlen~0); 164#L20-1 main_~i~0 := 0; 160#L24-2 assume !(0 != main_#t~nondet3 && main_~i~0 <= 1000000);havoc main_#t~nondet3; 155#L24-3 main_~j~0 := 0;main_~n~0 := main_~i~0; 156#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 163#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2018-12-02 07:58:35,657 INFO L796 eck$LassoCheckResult]: Loop: 158#L4-2 main_~k~0 := main_~k~0 - 1;main_~i~0 := main_~i~0 - 1;main_~j~0 := 1 + main_~j~0; 162#L36 assume !(main_~j~0 >= main_~n~0); 165#L31-2 assume !false;__VERIFIER_assert_#in~cond := (if main_~k~0 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 166#L4 assume !(0 == __VERIFIER_assert_~cond); 158#L4-2 [2018-12-02 07:58:35,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1019916713, now seen corresponding path program 1 times [2018-12-02 07:58:35,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,668 INFO L82 PathProgramCache]: Analyzing trace with hash 2528781, now seen corresponding path program 1 times [2018-12-02 07:58:35,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:58:35,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:35,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1891682659, now seen corresponding path program 1 times [2018-12-02 07:58:35,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 07:58:35,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 07:58:35,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:58:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:58:35,716 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 07:58:35,716 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 07:58:35,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:58:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:35,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:35,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:58:35,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 07:58:35,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 8 [2018-12-02 07:58:35,804 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:35,804 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:35,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:35,805 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:35,805 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-02 07:58:35,805 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,805 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:35,805 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:35,805 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 07:58:35,805 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:35,805 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:35,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:35,857 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:35,857 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-02 07:58:35,859 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_965c13dc-05f9-4621-bdba-7442aad7c29f/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:35,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-02 07:58:35,883 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-02 07:58:36,138 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-02 07:58:36,139 INFO L216 LassoAnalysis]: Preferences: [2018-12-02 07:58:36,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-02 07:58:36,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-02 07:58:36,139 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-02 07:58:36,140 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-02 07:58:36,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 07:58:36,140 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-02 07:58:36,140 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-02 07:58:36,140 INFO L131 ssoRankerPreferences]: Filename of dumped script: fragtest_simple_true-unreach-call_true-termination.i_Iteration3_Loop [2018-12-02 07:58:36,140 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-02 07:58:36,140 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-02 07:58:36,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:36,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:36,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-02 07:58:36,203 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-02 07:58:36,203 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-02 07:58:36,203 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 [2018-12-02 07:58:36,204 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-02 07:58:36,204 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-02 07:58:36,204 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-02 07:58:36,204 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-02 07:58:36,204 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-02 07:58:36,205 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-02 07:58:36,205 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-02 07:58:36,208 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-02 07:58:36,210 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-02 07:58:36,210 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-02 07:58:36,210 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-02 07:58:36,210 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-02 07:58:36,210 INFO L518 LassoAnalysis]: Proved termination. [2018-12-02 07:58:36,210 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-12-02 07:58:36,211 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-02 07:58:36,221 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:58:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:36,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:58:36,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:58:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:58:36,249 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-02 07:58:36,249 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-02 07:58:36,268 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 25 states and 33 transitions. Complement of second has 7 states. [2018-12-02 07:58:36,268 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 [2018-12-02 07:58:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-02 07:58:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2018-12-02 07:58:36,268 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 4 letters. [2018-12-02 07:58:36,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:36,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-02 07:58:36,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:36,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 8 letters. Loop has 8 letters. [2018-12-02 07:58:36,269 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-02 07:58:36,269 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2018-12-02 07:58:36,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 07:58:36,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2018-12-02 07:58:36,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 07:58:36,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 07:58:36,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 07:58:36,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 07:58:36,270 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:58:36,270 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:58:36,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 07:58:36,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 07:58:36,273 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 8 states. [2018-12-02 07:58:36,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:58:36,275 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 07:58:36,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 07:58:36,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-02 07:58:36,275 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-02 07:58:36,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 07:58:36,275 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:58:36,275 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-02 07:58:36,276 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-02 07:58:36,276 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-02 07:58:36,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-02 07:58:36,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 07:58:36 BoogieIcfgContainer [2018-12-02 07:58:36,280 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 07:58:36,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 07:58:36,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 07:58:36,280 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 07:58:36,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:58:35" (3/4) ... [2018-12-02 07:58:36,282 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 07:58:36,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 07:58:36,283 INFO L168 Benchmark]: Toolchain (without parser) took 1597.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 961.4 MB in the beginning and 933.2 MB in the end (delta: 28.2 MB). Peak memory consumption was 167.6 MB. Max. memory is 11.5 GB. [2018-12-02 07:58:36,284 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:58:36,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 119.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 07:58:36,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:58:36,285 INFO L168 Benchmark]: Boogie Preprocessor took 42.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-02 07:58:36,285 INFO L168 Benchmark]: RCFGBuilder took 134.34 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-12-02 07:58:36,285 INFO L168 Benchmark]: BuchiAutomizer took 1277.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.2 MB in the end (delta: 185.3 MB). Peak memory consumption was 185.3 MB. Max. memory is 11.5 GB. [2018-12-02 07:58:36,286 INFO L168 Benchmark]: Witness Printer took 2.61 ms. Allocated memory is still 1.2 GB. Free memory is still 933.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:58:36,287 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 119.47 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory is still 950.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.34 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: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1277.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.2 MB in the end (delta: 185.3 MB). Peak memory consumption was 185.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.61 ms. Allocated memory is still 1.2 GB. Free memory is still 933.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 2000001 and consists of 4 locations. One deterministic module has affine ranking function k and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 27 SDslu, 5 SDs, 0 SdLazy, 25 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf99 lsp64 ukn100 mio100 lsp100 div100 bol100 ite112 ukn100 eq170 hnf91 smp85 dnf98 smp100 tf110 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...