./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/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 275864fd23c88e3a2867d84f3947ff5231f6c6d6 .................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:01:59,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:01:59,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:01:59,921 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:01:59,921 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:01:59,922 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:01:59,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:01:59,924 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:01:59,925 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:01:59,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:01:59,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:01:59,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:01:59,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:01:59,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:01:59,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:01:59,929 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:01:59,929 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:01:59,931 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:01:59,932 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:01:59,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:01:59,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:01:59,934 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:01:59,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:01:59,936 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:01:59,936 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:01:59,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:01:59,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:01:59,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:01:59,938 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:01:59,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:01:59,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:01:59,940 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:01:59,940 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:01:59,940 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:01:59,941 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:01:59,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:01:59,941 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 08:01:59,950 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:01:59,950 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:01:59,951 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:01:59,951 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:01:59,951 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:01:59,951 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:01:59,951 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:01:59,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:01:59,952 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:01:59,953 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:01:59,954 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:01:59,954 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:01:59,954 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:01:59,954 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:01:59,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:01:59,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:01:59,954 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:01:59,955 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:01:59,955 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_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/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 -> 275864fd23c88e3a2867d84f3947ff5231f6c6d6 [2018-11-10 08:01:59,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:01:59,988 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:01:59,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:01:59,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:01:59,992 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:01:59,993 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i [2018-11-10 08:02:00,030 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/data/ea40d6354/0f555104fc2f4791827c7521b2e6fbf4/FLAG3ff6409dc [2018-11-10 08:02:00,471 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:02:00,471 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/sv-benchmarks/c/memsafety-ext/tree_cnstr_true-valid-memsafety_false-termination.i [2018-11-10 08:02:00,480 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/data/ea40d6354/0f555104fc2f4791827c7521b2e6fbf4/FLAG3ff6409dc [2018-11-10 08:02:00,490 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/data/ea40d6354/0f555104fc2f4791827c7521b2e6fbf4 [2018-11-10 08:02:00,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:02:00,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:02:00,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:00,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:02:00,496 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:02:00,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4205049b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00, skipping insertion in model container [2018-11-10 08:02:00,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:02:00,533 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:02:00,713 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:00,719 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:02:00,749 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:02:00,773 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:02:00,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00 WrapperNode [2018-11-10 08:02:00,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:02:00,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:00,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:02:00,774 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:02:00,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:02:00,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:02:00,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:02:00,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:02:00,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... [2018-11-10 08:02:00,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:02:00,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:02:00,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:02:00,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:02:00,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/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 [2018-11-10 08:02:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 08:02:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 08:02:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:02:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:02:01,238 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:02:01,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:01 BoogieIcfgContainer [2018-11-10 08:02:01,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:02:01,239 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:02:01,239 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:02:01,242 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:02:01,243 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:02:01,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:02:00" (1/3) ... [2018-11-10 08:02:01,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2746255e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:02:01, skipping insertion in model container [2018-11-10 08:02:01,244 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:02:01,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:02:00" (2/3) ... [2018-11-10 08:02:01,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2746255e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:02:01, skipping insertion in model container [2018-11-10 08:02:01,244 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:02:01,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:01" (3/3) ... [2018-11-10 08:02:01,246 INFO L375 chiAutomizerObserver]: Analyzing ICFG tree_cnstr_true-valid-memsafety_false-termination.i [2018-11-10 08:02:01,287 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:02:01,288 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:02:01,288 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:02:01,288 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:02:01,288 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:02:01,288 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:02:01,288 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:02:01,288 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:02:01,289 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:02:01,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-11-10 08:02:01,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-10 08:02:01,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:02:01,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:02:01,316 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 08:02:01,316 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:01,317 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:02:01,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-11-10 08:02:01,319 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-10 08:02:01,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:02:01,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:02:01,319 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 08:02:01,319 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:01,324 INFO L793 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~nondet1, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~short20, main_#t~mem24.base, main_#t~mem24.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~pred~0.base, main_~pred~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 8;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset; 29#L626true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L626 33#L626-1true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L626-1 45#L641-2true [2018-11-10 08:02:01,324 INFO L795 eck$LassoCheckResult]: Loop: 45#L641-2true assume true; 58#L628true assume !!(main_#t~nondet1 != 0);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 57#L631-2true assume !true; 21#L630-9true SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L630-9 13#L636true assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 16#L636-2true SUMMARY for call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L636-2 41#L641true assume !((main_#t~mem13.base == 0 && main_#t~mem13.offset == 0) && main_#t~nondet14 != 0);havoc main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~nondet14; 45#L641-2true [2018-11-10 08:02:01,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:01,328 INFO L82 PathProgramCache]: Analyzing trace with hash 925540, now seen corresponding path program 1 times [2018-11-10 08:02:01,330 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:02:01,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:02:01,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:01,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:01,414 INFO L82 PathProgramCache]: Analyzing trace with hash 697684895, now seen corresponding path program 1 times [2018-11-10 08:02:01,414 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:02:01,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:02:01,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:01,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:02:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:02:01,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:02:01,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 08:02:01,438 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 08:02:01,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 08:02:01,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 08:02:01,451 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-11-10 08:02:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:02:01,457 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-11-10 08:02:01,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 08:02:01,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 73 transitions. [2018-11-10 08:02:01,460 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-10 08:02:01,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 58 states and 69 transitions. [2018-11-10 08:02:01,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2018-11-10 08:02:01,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2018-11-10 08:02:01,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 69 transitions. [2018-11-10 08:02:01,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:02:01,467 INFO L705 BuchiCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-10 08:02:01,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 69 transitions. [2018-11-10 08:02:01,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-10 08:02:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-10 08:02:01,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2018-11-10 08:02:01,487 INFO L728 BuchiCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-10 08:02:01,487 INFO L608 BuchiCegarLoop]: Abstraction has 58 states and 69 transitions. [2018-11-10 08:02:01,487 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:02:01,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 69 transitions. [2018-11-10 08:02:01,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-11-10 08:02:01,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:02:01,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:02:01,489 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 08:02:01,489 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:02:01,489 INFO L793 eck$LassoCheckResult]: Stem: 166#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 148#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~nondet1, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~short20, main_#t~mem24.base, main_#t~mem24.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~pred~0.base, main_~pred~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 8;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset; 149#L626 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L626 171#L626-1 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L626-1 160#L641-2 [2018-11-10 08:02:01,489 INFO L795 eck$LassoCheckResult]: Loop: 160#L641-2 assume true; 181#L628 assume !!(main_#t~nondet1 != 0);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 141#L631-2 assume true; 180#L630-1 SUMMARY for call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L630-1 161#L630-2 main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 162#L630-3 assume !main_#t~short4; 168#L630-7 assume !main_#t~short4;havoc main_#t~mem2.base, main_#t~mem2.offset;havoc main_#t~mem3.base, main_#t~mem3.offset;havoc main_#t~short4; 159#L630-9 SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L630-9 150#L636 assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 152#L636-2 SUMMARY for call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L636-2 153#L641 assume !((main_#t~mem13.base == 0 && main_#t~mem13.offset == 0) && main_#t~nondet14 != 0);havoc main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~nondet14; 160#L641-2 [2018-11-10 08:02:01,490 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:01,490 INFO L82 PathProgramCache]: Analyzing trace with hash 925540, now seen corresponding path program 2 times [2018-11-10 08:02:01,490 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:02:01,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:02:01,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:01,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:01,511 INFO L82 PathProgramCache]: Analyzing trace with hash 499577672, now seen corresponding path program 1 times [2018-11-10 08:02:01,511 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:02:01,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:02:01,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,511 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:02:01,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:02:01,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1515034619, now seen corresponding path program 1 times [2018-11-10 08:02:01,525 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:02:01,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:02:01,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:02:01,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:02:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:02:01,670 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2018-11-10 08:02:01,856 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2018-11-10 08:02:01,909 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:01,911 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:01,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:02:01 BoogieIcfgContainer [2018-11-10 08:02:01,920 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:02:01,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:02:01,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:02:01,921 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:02:01,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:02:01" (3/4) ... [2018-11-10 08:02:01,924 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 08:02:01,950 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ee57bdfb-6cf2-4631-ae0a-cd98299615a9/bin-2019/uautomizer/witness.graphml [2018-11-10 08:02:01,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:02:01,951 INFO L168 Benchmark]: Toolchain (without parser) took 1458.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -49.9 MB). Peak memory consumption was 90.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,951 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:02:01,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,952 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,953 INFO L168 Benchmark]: RCFGBuilder took 363.15 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: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,953 INFO L168 Benchmark]: BuchiAutomizer took 681.47 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: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,953 INFO L168 Benchmark]: Witness Printer took 29.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:02:01,956 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 363.15 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: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 681.47 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: 92.3 MB). Peak memory consumption was 92.3 MB. Max. memory is 11.5 GB. * Witness Printer took 29.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 58 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 73 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 628]: Nontermination argument in form of an infinite program execution. [2018-11-10 08:02:01,962 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:01,963 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:01,964 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:02:01,965 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@758a93b1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@631b2a41=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4971e12e=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@231acdd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2ba7d5b3=0, root=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@a3c0966=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7c325df8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@758a93b1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1fbb2415=0, NULL=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b73a72=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7c325df8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eee3881=0, pred=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@a3c0966=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@27736494=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2f00f2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@4a9e2c08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3eee3881=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6f07b588=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@326fbcea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@326fbcea=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3d5a3b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@28261ba3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@24634d23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39576095=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@27736494=0, n=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@24634d23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15d4b59d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@231acdd9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1fbb2415=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@53f2cde5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13303263=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2ba7d5b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@2d9a91fe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@4a9e2c08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3d5a3b3=0, root=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@28261ba3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@2450d3e6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@53f2cde5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be6950f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4971e12e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6f07b588=0, pred=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be6950f=0, NULL=5, n=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2f00f2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@631b2a41=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 627]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L625] EXPR, FCALL malloc(sizeof(*root)) [L625] struct TreeNode* root = malloc(sizeof(*root)), *n; [L626] FCALL root->left = ((void *)0) [L627] FCALL root->right = ((void *)0) Loop: [L628] COND TRUE __VERIFIER_nondet_int() [L629] n = root [L630] EXPR, FCALL n->left [L630] n->left && n->right [L630] COND FALSE !(n->left && n->right) [L636] EXPR, FCALL n->left [L636] COND FALSE !(!n->left && __VERIFIER_nondet_int()) [L641] EXPR, FCALL n->right [L641] COND FALSE !(!n->right && __VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...