./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr_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_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/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 b677e0cdf35fdc8eada9522ef5e29b8173f39a0f ................................................................................................................................................................................................................................................................................................................................................... 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 10:52:10,001 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:52:10,002 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:52:10,011 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:52:10,011 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:52:10,011 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:52:10,012 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:52:10,014 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:52:10,015 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:52:10,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:52:10,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:52:10,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:52:10,017 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:52:10,018 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:52:10,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:52:10,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:52:10,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:52:10,021 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:52:10,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:52:10,025 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:52:10,026 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:52:10,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:52:10,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:52:10,028 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:52:10,028 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:52:10,029 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:52:10,030 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:52:10,030 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:52:10,032 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:52:10,033 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:52:10,033 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:52:10,033 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:52:10,033 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:52:10,033 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:52:10,034 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:52:10,034 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:52:10,035 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 10:52:10,046 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:52:10,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:52:10,047 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:52:10,047 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:52:10,047 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:52:10,047 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 10:52:10,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:52:10,048 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 10:52:10,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 10:52:10,050 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:52:10,050 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 10:52:10,053 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:52:10,053 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 10:52:10,053 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 10:52:10,054 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 10:52:10,054 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_67d284b8-ddb1-4c77-8d14-6d32f4e59610/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 -> b677e0cdf35fdc8eada9522ef5e29b8173f39a0f [2018-11-10 10:52:10,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:52:10,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:52:10,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:52:10,091 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:52:10,091 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:52:10,091 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-11-10 10:52:10,135 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/data/7c6144abc/caa3c63f2f714a85864697a2fe03329a/FLAGc0d30d660 [2018-11-10 10:52:10,590 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:52:10,590 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/sv-benchmarks/c/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-11-10 10:52:10,599 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/data/7c6144abc/caa3c63f2f714a85864697a2fe03329a/FLAGc0d30d660 [2018-11-10 10:52:10,609 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/data/7c6144abc/caa3c63f2f714a85864697a2fe03329a [2018-11-10 10:52:10,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:52:10,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 10:52:10,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:52:10,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:52:10,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:52:10,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb0e8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10, skipping insertion in model container [2018-11-10 10:52:10,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:52:10,650 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:52:10,828 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:52:10,834 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:52:10,861 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:52:10,889 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:52:10,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10 WrapperNode [2018-11-10 10:52:10,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:52:10,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 10:52:10,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 10:52:10,890 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 10:52:10,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 10:52:10,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:52:10,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:52:10,960 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:52:10,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... [2018-11-10 10:52:10,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:52:10,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:52:10,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:52:10,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:52:10,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/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 10:52:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 10:52:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 10:52:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:52:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:52:11,360 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:52:11,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:52:11 BoogieIcfgContainer [2018-11-10 10:52:11,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:52:11,361 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 10:52:11,361 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 10:52:11,363 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 10:52:11,364 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:52:11,364 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 10:52:10" (1/3) ... [2018-11-10 10:52:11,365 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11e590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:52:11, skipping insertion in model container [2018-11-10 10:52:11,365 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:52:11,365 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:52:10" (2/3) ... [2018-11-10 10:52:11,365 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11e590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 10:52:11, skipping insertion in model container [2018-11-10 10:52:11,365 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 10:52:11,365 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:52:11" (3/3) ... [2018-11-10 10:52:11,367 INFO L375 chiAutomizerObserver]: Analyzing ICFG tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-11-10 10:52:11,399 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:52:11,400 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 10:52:11,400 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 10:52:11,400 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 10:52:11,400 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:52:11,400 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:52:11,400 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 10:52:11,400 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:52:11,400 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 10:52:11,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2018-11-10 10:52:11,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-11-10 10:52:11,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:52:11,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:52:11,429 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 10:52:11,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:52:11,429 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 10:52:11,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states. [2018-11-10 10:52:11,432 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-11-10 10:52:11,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:52:11,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:52:11,432 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 10:52:11,433 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:52:11,437 INFO L793 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 14#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~mem14.base, main_#t~mem14.offset, main_#t~nondet15, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~nondet1, main_#t~malloc20.base, main_#t~malloc20.offset, 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~malloc24.base, main_#t~malloc24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~mem28.base, main_#t~mem28.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 12;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; 60#L631true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L631 62#L631-1true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L631-1 5#L632true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 8, 4); srcloc: L632 38#L648-2true [2018-11-10 10:52:11,437 INFO L795 eck$LassoCheckResult]: Loop: 38#L648-2true assume true; 55#L634true 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; 39#L637-2true assume !true; 67#L636-9true SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L636-9 59#L642true assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~nondet9; 63#L642-2true SUMMARY for call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L642-2 34#L648true assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && main_#t~nondet15 != 0);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 38#L648-2true [2018-11-10 10:52:11,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:52:11,442 INFO L82 PathProgramCache]: Analyzing trace with hash 28691745, now seen corresponding path program 1 times [2018-11-10 10:52:11,443 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:52:11,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:52:11,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:52:11,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:52:11,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1614775014, now seen corresponding path program 1 times [2018-11-10 10:52:11,528 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:52:11,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:52:11,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:52:11,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:52:11,547 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 10:52:11,548 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:52:11,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:52:11,551 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 10:52:11,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 10:52:11,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 10:52:11,562 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-11-10 10:52:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:52:11,568 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2018-11-10 10:52:11,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 10:52:11,569 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 77 transitions. [2018-11-10 10:52:11,571 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-11-10 10:52:11,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 65 states and 73 transitions. [2018-11-10 10:52:11,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2018-11-10 10:52:11,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2018-11-10 10:52:11,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 73 transitions. [2018-11-10 10:52:11,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 10:52:11,576 INFO L705 BuchiCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-11-10 10:52:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 73 transitions. [2018-11-10 10:52:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-11-10 10:52:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-10 10:52:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2018-11-10 10:52:11,599 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-11-10 10:52:11,599 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 73 transitions. [2018-11-10 10:52:11,599 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 10:52:11,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 73 transitions. [2018-11-10 10:52:11,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2018-11-10 10:52:11,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 10:52:11,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 10:52:11,601 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 10:52:11,601 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:52:11,602 INFO L793 eck$LassoCheckResult]: Stem: 185#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 164#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~mem14.base, main_#t~mem14.offset, main_#t~nondet15, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~nondet1, main_#t~malloc20.base, main_#t~malloc20.offset, 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~malloc24.base, main_#t~malloc24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~mem28.base, main_#t~mem28.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 12;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; 165#L631 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L631 208#L631-1 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L631-1 151#L632 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 8, 4); srcloc: L632 152#L648-2 [2018-11-10 10:52:11,602 INFO L795 eck$LassoCheckResult]: Loop: 152#L648-2 assume true; 191#L634 assume !!(main_#t~nondet1 != 0);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 183#L637-2 assume true; 168#L636-1 SUMMARY for call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L636-1 169#L636-2 main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 146#L636-3 assume !main_#t~short4; 148#L636-7 assume !main_#t~short4;havoc main_#t~mem2.base, main_#t~mem2.offset;havoc main_#t~short4;havoc main_#t~mem3.base, main_#t~mem3.offset; 157#L636-9 SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L636-9 207#L642 assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~mem8.base, main_#t~mem8.offset;havoc main_#t~nondet9; 205#L642-2 SUMMARY for call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L642-2 187#L648 assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && main_#t~nondet15 != 0);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 152#L648-2 [2018-11-10 10:52:11,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:52:11,602 INFO L82 PathProgramCache]: Analyzing trace with hash 28691745, now seen corresponding path program 2 times [2018-11-10 10:52:11,602 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:52:11,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:52:11,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:52:11,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:52:11,626 INFO L82 PathProgramCache]: Analyzing trace with hash -641441201, now seen corresponding path program 1 times [2018-11-10 10:52:11,626 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:52:11,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:52:11,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 10:52:11,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:52:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1553015087, now seen corresponding path program 1 times [2018-11-10 10:52:11,642 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:52:11,642 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:52:11,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:52:11,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:52:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:52:11,796 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2018-11-10 10:52:12,101 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2018-11-10 10:52:12,187 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:52:12,190 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:52:12,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 10:52:12 BoogieIcfgContainer [2018-11-10 10:52:12,198 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 10:52:12,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:52:12,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:52:12,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:52:12,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:52:11" (3/4) ... [2018-11-10 10:52:12,202 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 10:52:12,228 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_67d284b8-ddb1-4c77-8d14-6d32f4e59610/bin-2019/uautomizer/witness.graphml [2018-11-10 10:52:12,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:52:12,229 INFO L168 Benchmark]: Toolchain (without parser) took 1617.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 955.5 MB in the beginning and 990.9 MB in the end (delta: -35.4 MB). Peak memory consumption was 104.1 MB. Max. memory is 11.5 GB. [2018-11-10 10:52:12,229 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:52:12,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.24 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 934.0 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 10:52:12,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-10 10:52:12,230 INFO L168 Benchmark]: Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:52:12,230 INFO L168 Benchmark]: RCFGBuilder took 375.36 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2018-11-10 10:52:12,231 INFO L168 Benchmark]: BuchiAutomizer took 837.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:52:12,231 INFO L168 Benchmark]: Witness Printer took 29.49 ms. Allocated memory is still 1.2 GB. Free memory is still 990.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 10:52:12,234 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.24 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 934.0 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 69.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 934.0 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 375.36 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: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 837.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 98.7 MB). Peak memory consumption was 98.7 MB. Max. memory is 11.5 GB. * Witness Printer took 29.49 ms. Allocated memory is still 1.2 GB. Free memory is still 990.9 MB. There was no memory consumed. 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 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 77 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: 634]: Nontermination argument in form of an infinite program execution. [2018-11-10 10:52:12,241 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:52:12,242 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:52:12,244 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 10:52:12,246 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 {s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7604b989=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@625667c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@502d3fd=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@840643e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6caea37d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@72492033=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@15e311db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@30ca3ac2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1440676c=0, root=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1f27274b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7604b989=0, NULL=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d446cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33553d63=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@15e311db=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1f27274b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1440676c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@840643e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@178045af=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@49c643f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@13c8dcf8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6e0f6ad4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3035ca28=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7f3ed2b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7f3ed2b3=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@14fa8ba0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@72492033=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5aa6ef36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1fa4d091=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@502df93b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@178045af=0, n=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1fa4d091=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7360a057=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6caea37d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@49c643f0=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2462c35a=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20b61b48=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@30ca3ac2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6e0f6ad4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@14fa8ba0=0, root=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5aa6ef36=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@7f65663b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2462c35a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54d62075=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52735ea4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@160adc60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@160adc60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@502d3fd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33553d63=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3035ca28=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52735ea4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54d62075=0, s=0, NULL=2, n=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@13c8dcf8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@625667c8=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 633]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L630] EXPR, FCALL malloc(sizeof(*root)) [L630] struct TreeNode* root = malloc(sizeof(*root)), *n; [L631] FCALL root->left = ((void *)0) [L632] FCALL root->right = ((void *)0) [L633] FCALL root->parent = ((void *)0) Loop: [L634] COND TRUE __VERIFIER_nondet_int() [L635] n = root [L636] EXPR, FCALL n->left [L636] n->left && n->right [L636] COND FALSE !(n->left && n->right) [L642] EXPR, FCALL n->left [L642] COND FALSE !(!n->left && __VERIFIER_nondet_int()) [L648] EXPR, FCALL n->right [L648] COND FALSE !(!n->right && __VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...