./Ultimate.py --spec ../../sv-benchmarks/c/properties/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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/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_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/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 0.1.23-635dfa2 [2018-12-01 12:41:15,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 12:41:15,949 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 12:41:15,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 12:41:15,957 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 12:41:15,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 12:41:15,958 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 12:41:15,960 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 12:41:15,961 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 12:41:15,961 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 12:41:15,962 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 12:41:15,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 12:41:15,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 12:41:15,963 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 12:41:15,964 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 12:41:15,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 12:41:15,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 12:41:15,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 12:41:15,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 12:41:15,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 12:41:15,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 12:41:15,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 12:41:15,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 12:41:15,972 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 12:41:15,972 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 12:41:15,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 12:41:15,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 12:41:15,974 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 12:41:15,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 12:41:15,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 12:41:15,976 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 12:41:15,976 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 12:41:15,976 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 12:41:15,977 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 12:41:15,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 12:41:15,977 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 12:41:15,978 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 12:41:15,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 12:41:15,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 12:41:15,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 12:41:15,990 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 12:41:15,990 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 12:41:15,991 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 12:41:15,991 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 12:41:15,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 12:41:15,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 12:41:15,992 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 12:41:15,993 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 12:41:15,993 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_417479ec-4aa7-47c6-9e9f-514cccbb354a/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 [2018-12-01 12:41:16,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 12:41:16,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 12:41:16,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 12:41:16,023 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 12:41:16,023 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 12:41:16,023 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-12-01 12:41:16,062 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/data/7817247ba/b32c12cb8a274c7c91e961cac71eea96/FLAGe908129a7 [2018-12-01 12:41:16,467 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 12:41:16,467 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/sv-benchmarks/c/memsafety-ext/tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-12-01 12:41:16,473 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/data/7817247ba/b32c12cb8a274c7c91e961cac71eea96/FLAGe908129a7 [2018-12-01 12:41:16,481 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/data/7817247ba/b32c12cb8a274c7c91e961cac71eea96 [2018-12-01 12:41:16,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 12:41:16,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 12:41:16,484 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 12:41:16,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 12:41:16,486 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 12:41:16,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68cabf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16, skipping insertion in model container [2018-12-01 12:41:16,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 12:41:16,510 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 12:41:16,651 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 12:41:16,656 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 12:41:16,714 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 12:41:16,732 INFO L195 MainTranslator]: Completed translation [2018-12-01 12:41:16,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16 WrapperNode [2018-12-01 12:41:16,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 12:41:16,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 12:41:16,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 12:41:16,733 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 12:41:16,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 12:41:16,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 12:41:16,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 12:41:16,761 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 12:41:16,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... [2018-12-01 12:41:16,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 12:41:16,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 12:41:16,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 12:41:16,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 12:41:16,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 12:41:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 12:41:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-01 12:41:16,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-01 12:41:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 12:41:16,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 12:41:16,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 12:41:17,055 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 12:41:17,055 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 12:41:17,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:41:17 BoogieIcfgContainer [2018-12-01 12:41:17,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 12:41:17,056 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 12:41:17,056 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 12:41:17,058 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 12:41:17,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 12:41:17,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 12:41:16" (1/3) ... [2018-12-01 12:41:17,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8d8cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 12:41:17, skipping insertion in model container [2018-12-01 12:41:17,060 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 12:41:17,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 12:41:16" (2/3) ... [2018-12-01 12:41:17,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8d8cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 12:41:17, skipping insertion in model container [2018-12-01 12:41:17,060 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 12:41:17,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:41:17" (3/3) ... [2018-12-01 12:41:17,061 INFO L375 chiAutomizerObserver]: Analyzing ICFG tree_parent_ptr_true-valid-memsafety_false-termination.i [2018-12-01 12:41:17,092 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 12:41:17,092 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 12:41:17,092 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 12:41:17,092 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 12:41:17,092 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 12:41:17,093 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 12:41:17,093 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 12:41:17,093 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 12:41:17,093 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 12:41:17,100 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-01 12:41:17,113 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-12-01 12:41:17,113 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 12:41:17,113 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 12:41:17,117 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 12:41:17,117 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-01 12:41:17,117 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 12:41:17,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2018-12-01 12:41:17,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-12-01 12:41:17,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 12:41:17,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 12:41:17,119 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 12:41:17,119 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2018-12-01 12:41:17,123 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 10#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~nondet15, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~nondet1, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~malloc24.base, main_#t~malloc24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~mem28.base, main_#t~mem28.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(12);main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset;call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 4 + main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 8 + main_~root~0.offset, 4); 18#L648-2true [2018-12-01 12:41:17,124 INFO L796 eck$LassoCheckResult]: Loop: 18#L648-2true assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 20#L637-2true assume !true; 7#L636-5true call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4); 6#L642true assume (main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && 0 != main_#t~nondet9;havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.alloc(12);call write~$Pointer$(main_#t~malloc10.base, main_#t~malloc10.offset, main_~n~0.base, main_~n~0.offset, 4);call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(0, 0, main_#t~mem11.base, main_#t~mem11.offset, 4);havoc main_#t~mem11.base, main_#t~mem11.offset;call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(0, 0, main_#t~mem12.base, 4 + main_#t~mem12.offset, 4);havoc main_#t~mem12.base, main_#t~mem12.offset;call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(main_~n~0.base, main_~n~0.offset, main_#t~mem13.base, 8 + main_#t~mem13.offset, 4);havoc main_#t~mem13.base, main_#t~mem13.offset; 9#L642-2true call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4); 13#L648true assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && 0 != main_#t~nondet15);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 18#L648-2true [2018-12-01 12:41:17,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,127 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-12-01 12:41:17,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1235889697, now seen corresponding path program 1 times [2018-12-01 12:41:17,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 12:41:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 12:41:17,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 12:41:17,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 12:41:17,224 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 12:41:17,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 12:41:17,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 12:41:17,234 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-12-01 12:41:17,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 12:41:17,238 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2018-12-01 12:41:17,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 12:41:17,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2018-12-01 12:41:17,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-12-01 12:41:17,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 17 states and 25 transitions. [2018-12-01 12:41:17,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-12-01 12:41:17,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-12-01 12:41:17,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 25 transitions. [2018-12-01 12:41:17,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 12:41:17,243 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2018-12-01 12:41:17,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 25 transitions. [2018-12-01 12:41:17,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-01 12:41:17,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-01 12:41:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 25 transitions. [2018-12-01 12:41:17,260 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2018-12-01 12:41:17,260 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 25 transitions. [2018-12-01 12:41:17,260 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 12:41:17,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 25 transitions. [2018-12-01 12:41:17,261 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-12-01 12:41:17,261 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 12:41:17,261 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 12:41:17,261 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 12:41:17,261 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 12:41:17,261 INFO L794 eck$LassoCheckResult]: Stem: 64#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 61#L-1 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;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(12);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;call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 4 + main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 8 + main_~root~0.offset, 4); 62#L648-2 [2018-12-01 12:41:17,262 INFO L796 eck$LassoCheckResult]: Loop: 62#L648-2 assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 65#L637-2 call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 66#L636-1 assume main_#t~short4;call main_#t~mem3.base, main_#t~mem3.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4);main_#t~short4 := main_#t~mem3.base != 0 || main_#t~mem3.offset != 0; 50#L636-3 assume !main_#t~short4;havoc main_#t~mem2.base, main_#t~mem2.offset;havoc main_#t~short4;havoc main_#t~mem3.base, main_#t~mem3.offset; 51#L636-5 call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4); 57#L642 assume (main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && 0 != main_#t~nondet9;havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.alloc(12);call write~$Pointer$(main_#t~malloc10.base, main_#t~malloc10.offset, main_~n~0.base, main_~n~0.offset, 4);call main_#t~mem11.base, main_#t~mem11.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(0, 0, main_#t~mem11.base, main_#t~mem11.offset, 4);havoc main_#t~mem11.base, main_#t~mem11.offset;call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(0, 0, main_#t~mem12.base, 4 + main_#t~mem12.offset, 4);havoc main_#t~mem12.base, main_#t~mem12.offset;call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);call write~$Pointer$(main_~n~0.base, main_~n~0.offset, main_#t~mem13.base, 8 + main_#t~mem13.offset, 4);havoc main_#t~mem13.base, main_#t~mem13.offset; 58#L642-2 call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4); 60#L648 assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && 0 != main_#t~nondet15);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 62#L648-2 [2018-12-01 12:41:17,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,262 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-12-01 12:41:17,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2066931060, now seen corresponding path program 1 times [2018-12-01 12:41:17,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,276 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 12:41:17,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 12:41:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 12:41:17,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 12:41:17,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 12:41:17,342 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 12:41:17,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 12:41:17,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-01 12:41:17,343 INFO L87 Difference]: Start difference. First operand 17 states and 25 transitions. cyclomatic complexity: 10 Second operand 5 states. [2018-12-01 12:41:17,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 12:41:17,437 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2018-12-01 12:41:17,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-01 12:41:17,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 35 transitions. [2018-12-01 12:41:17,439 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2018-12-01 12:41:17,440 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 35 transitions. [2018-12-01 12:41:17,441 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-01 12:41:17,441 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-12-01 12:41:17,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 35 transitions. [2018-12-01 12:41:17,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 12:41:17,441 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 35 transitions. [2018-12-01 12:41:17,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 35 transitions. [2018-12-01 12:41:17,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-12-01 12:41:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-01 12:41:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2018-12-01 12:41:17,444 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2018-12-01 12:41:17,444 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2018-12-01 12:41:17,444 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 12:41:17,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2018-12-01 12:41:17,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2018-12-01 12:41:17,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 12:41:17,445 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 12:41:17,446 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 12:41:17,446 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 12:41:17,446 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 114#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~nondet15, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~nondet1, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~malloc24.base, main_#t~malloc24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~mem28.base, main_#t~mem28.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(12);main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset;call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 4 + main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 8 + main_~root~0.offset, 4); 115#L648-2 [2018-12-01 12:41:17,446 INFO L796 eck$LassoCheckResult]: Loop: 115#L648-2 assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 118#L637-2 call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 119#L636-1 assume main_#t~short4;call main_#t~mem3.base, main_#t~mem3.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4);main_#t~short4 := main_#t~mem3.base != 0 || main_#t~mem3.offset != 0; 101#L636-3 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; 102#L636-5 call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4); 108#L642 assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && 0 != main_#t~nondet9);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 109#L642-2 call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4); 113#L648 assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && 0 != main_#t~nondet15);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 115#L648-2 [2018-12-01 12:41:17,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,446 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-12-01 12:41:17,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,463 INFO L82 PathProgramCache]: Analyzing trace with hash 2066932982, now seen corresponding path program 1 times [2018-12-01 12:41:17,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 12:41:17,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1537472840, now seen corresponding path program 1 times [2018-12-01 12:41:17,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,478 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 12:41:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 12:41:17,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 12:41:17,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-01 12:41:17,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-01 12:41:17,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-01 12:41:17,668 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand 5 states. [2018-12-01 12:41:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 12:41:17,760 INFO L93 Difference]: Finished difference Result 33 states and 46 transitions. [2018-12-01 12:41:17,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-01 12:41:17,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 46 transitions. [2018-12-01 12:41:17,762 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2018-12-01 12:41:17,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 46 transitions. [2018-12-01 12:41:17,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-12-01 12:41:17,763 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2018-12-01 12:41:17,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2018-12-01 12:41:17,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 12:41:17,763 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 46 transitions. [2018-12-01 12:41:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2018-12-01 12:41:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 28. [2018-12-01 12:41:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-01 12:41:17,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 39 transitions. [2018-12-01 12:41:17,766 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2018-12-01 12:41:17,766 INFO L608 BuchiCegarLoop]: Abstraction has 28 states and 39 transitions. [2018-12-01 12:41:17,766 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-01 12:41:17,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 39 transitions. [2018-12-01 12:41:17,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2018-12-01 12:41:17,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 12:41:17,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 12:41:17,768 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 12:41:17,768 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 12:41:17,768 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 180#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~nondet15, main_#t~malloc16.base, main_#t~malloc16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~nondet1, main_#t~malloc20.base, main_#t~malloc20.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~mem22.base, main_#t~mem22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~malloc24.base, main_#t~malloc24.offset, main_#t~mem25.base, main_#t~mem25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_#t~malloc27.base, main_#t~malloc27.offset, main_#t~mem28.base, main_#t~mem28.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc(12);main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset;call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 4 + main_~root~0.offset, 4);call write~$Pointer$(0, 0, main_~root~0.base, 8 + main_~root~0.offset, 4); 181#L648-2 [2018-12-01 12:41:17,768 INFO L796 eck$LassoCheckResult]: Loop: 181#L648-2 assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 192#L637-2 call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4);main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 189#L636-1 assume !main_#t~short4; 190#L636-3 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; 195#L636-5 call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset, 4); 193#L642 assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && 0 != main_#t~nondet9);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 178#L642-2 call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~n~0.base, 4 + main_~n~0.offset, 4); 179#L648 assume !((main_#t~mem14.base == 0 && main_#t~mem14.offset == 0) && 0 != main_#t~nondet15);havoc main_#t~mem14.base, main_#t~mem14.offset;havoc main_#t~nondet15; 181#L648-2 [2018-12-01 12:41:17,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,768 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2018-12-01 12:41:17,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,781 INFO L82 PathProgramCache]: Analyzing trace with hash 2124191284, now seen corresponding path program 1 times [2018-12-01 12:41:17,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,782 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 12:41:17,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 12:41:17,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1480214538, now seen corresponding path program 1 times [2018-12-01 12:41:17,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 12:41:17,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 12:41:17,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 12:41:17,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 12:41:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 12:41:18,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 12:41:18 BoogieIcfgContainer [2018-12-01 12:41:18,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 12:41:18,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 12:41:18,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 12:41:18,055 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 12:41:18,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 12:41:17" (3/4) ... [2018-12-01 12:41:18,058 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 12:41:18,084 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_417479ec-4aa7-47c6-9e9f-514cccbb354a/bin-2019/uautomizer/witness.graphml [2018-12-01 12:41:18,084 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 12:41:18,084 INFO L168 Benchmark]: Toolchain (without parser) took 1601.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.5 MB in the beginning and 910.2 MB in the end (delta: 38.3 MB). Peak memory consumption was 176.2 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,085 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 12:41:18,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.99 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,087 INFO L168 Benchmark]: Boogie Preprocessor took 18.63 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. [2018-12-01 12:41:18,087 INFO L168 Benchmark]: RCFGBuilder took 276.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,087 INFO L168 Benchmark]: BuchiAutomizer took 998.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.6 MB in the end (delta: 169.4 MB). Peak memory consumption was 169.4 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,088 INFO L168 Benchmark]: Witness Printer took 29.73 ms. Allocated memory is still 1.2 GB. Free memory was 913.6 MB in the beginning and 910.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-01 12:41:18,090 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.99 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.63 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 276.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 998.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.6 MB in the end (delta: 169.4 MB). Peak memory consumption was 169.4 MB. Max. memory is 11.5 GB. * Witness Printer took 29.73 ms. Allocated memory is still 1.2 GB. Free memory was 913.6 MB in the beginning and 910.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 28 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 29 SDslu, 60 SDs, 0 SdLazy, 100 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 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. 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@3da70fe2=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@34392c2a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f130797=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@622bbdd1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@254bf3b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5492313f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6be29c8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@45d7869f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@64214b3=0, root=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@66994de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3da70fe2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52766900=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76959dec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6be29c8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@66994de=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@64214b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@622bbdd1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6ddfd722=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@378d604a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@434ae611=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@33c50677=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7faa8785=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6bb158cb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6bb158cb=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6d18cf3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5492313f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5694ff16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1af6cd2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d6299e5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6ddfd722=0, n=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1af6cd2d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f1ef1ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@254bf3b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@378d604a=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@67fe6e64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77f6058=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@45d7869f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@33c50677=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6d18cf3b=0, root=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5694ff16=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@27b044cc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@67fe6e64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a52fbd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@751cdb82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62df3ee0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62df3ee0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f130797=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76959dec=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7faa8785=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@751cdb82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a52fbd6=0, s=0, n=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@434ae611=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@34392c2a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 634]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L630] struct TreeNode* root = malloc(sizeof(*root)), *n; [L631] root->left = ((void *)0) [L632] root->right = ((void *)0) [L633] root->parent = ((void *)0) Loop: [L634] COND TRUE __VERIFIER_nondet_int() [L635] n = root [L636] EXPR n->left [L636] n->left && n->right [L636] COND FALSE !(n->left && n->right) [L642] EXPR n->left [L642] COND FALSE !(!n->left && __VERIFIER_nondet_int()) [L648] EXPR 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...