./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0218_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_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0218_true-valid-memsafety_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/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 81bd924633f460f7a725e1a3767479d5920ead2e ...................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-02 01:50:34,076 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 01:50:34,077 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 01:50:34,084 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 01:50:34,085 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 01:50:34,085 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 01:50:34,086 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 01:50:34,087 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 01:50:34,087 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 01:50:34,088 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 01:50:34,088 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 01:50:34,088 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 01:50:34,089 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 01:50:34,089 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 01:50:34,090 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 01:50:34,090 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 01:50:34,090 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 01:50:34,091 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 01:50:34,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 01:50:34,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 01:50:34,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 01:50:34,094 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 01:50:34,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 01:50:34,095 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 01:50:34,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 01:50:34,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 01:50:34,096 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 01:50:34,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 01:50:34,097 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 01:50:34,098 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 01:50:34,098 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 01:50:34,098 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 01:50:34,098 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 01:50:34,098 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 01:50:34,099 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 01:50:34,099 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 01:50:34,099 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-02 01:50:34,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 01:50:34,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 01:50:34,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 01:50:34,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 01:50:34,111 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 01:50:34,111 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-02 01:50:34,111 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-02 01:50:34,111 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-02 01:50:34,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 01:50:34,112 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 01:50:34,113 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-02 01:50:34,114 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 01:50:34,114 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-02 01:50:34,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 01:50:34,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 01:50:34,114 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-02 01:50:34,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 01:50:34,114 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 01:50:34,115 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-02 01:50:34,115 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-02 01:50:34,115 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_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/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 -> 81bd924633f460f7a725e1a3767479d5920ead2e [2018-12-02 01:50:34,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 01:50:34,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 01:50:34,146 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 01:50:34,147 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 01:50:34,147 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 01:50:34,148 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety/test-0218_true-valid-memsafety_false-termination.i [2018-12-02 01:50:34,183 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/data/3ba58a121/e0523939feac4446bb9afc15de74bef7/FLAGaeaf49f47 [2018-12-02 01:50:34,649 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 01:50:34,649 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/sv-benchmarks/c/memsafety/test-0218_true-valid-memsafety_false-termination.i [2018-12-02 01:50:34,656 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/data/3ba58a121/e0523939feac4446bb9afc15de74bef7/FLAGaeaf49f47 [2018-12-02 01:50:34,665 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/data/3ba58a121/e0523939feac4446bb9afc15de74bef7 [2018-12-02 01:50:34,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 01:50:34,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 01:50:34,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 01:50:34,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 01:50:34,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 01:50:34,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:34,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75090e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34, skipping insertion in model container [2018-12-02 01:50:34,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:34,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 01:50:34,696 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 01:50:34,875 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:50:34,918 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 01:50:34,951 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 01:50:34,984 INFO L195 MainTranslator]: Completed translation [2018-12-02 01:50:34,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34 WrapperNode [2018-12-02 01:50:34,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 01:50:34,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 01:50:34,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 01:50:34,985 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 01:50:34,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:34,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 01:50:35,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 01:50:35,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 01:50:35,014 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 01:50:35,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... [2018-12-02 01:50:35,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 01:50:35,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 01:50:35,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 01:50:35,034 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 01:50:35,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-02 01:50:35,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-12-02 01:50:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 01:50:35,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 01:50:35,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 01:50:35,141 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-02 01:50:35,314 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 01:50:35,314 INFO L280 CfgBuilder]: Removed 21 assue(true) statements. [2018-12-02 01:50:35,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:50:35 BoogieIcfgContainer [2018-12-02 01:50:35,315 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 01:50:35,315 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-02 01:50:35,315 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-02 01:50:35,318 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-02 01:50:35,319 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 01:50:35,319 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 01:50:34" (1/3) ... [2018-12-02 01:50:35,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@456a1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:50:35, skipping insertion in model container [2018-12-02 01:50:35,320 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 01:50:35,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:50:34" (2/3) ... [2018-12-02 01:50:35,320 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@456a1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 01:50:35, skipping insertion in model container [2018-12-02 01:50:35,320 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-02 01:50:35,320 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:50:35" (3/3) ... [2018-12-02 01:50:35,321 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0218_true-valid-memsafety_false-termination.i [2018-12-02 01:50:35,352 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 01:50:35,352 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-02 01:50:35,353 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-02 01:50:35,353 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-02 01:50:35,353 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 01:50:35,353 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 01:50:35,353 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-02 01:50:35,353 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 01:50:35,353 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-02 01:50:35,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2018-12-02 01:50:35,377 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-12-02 01:50:35,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 01:50:35,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 01:50:35,381 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 01:50:35,381 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 01:50:35,381 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-02 01:50:35,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2018-12-02 01:50:35,383 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-12-02 01:50:35,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 01:50:35,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 01:50:35,383 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 01:50:35,383 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 01:50:35,388 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 11#L-1true havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 7#L826-2true [2018-12-02 01:50:35,388 INFO L796 eck$LassoCheckResult]: Loop: 7#L826-2true assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 38#L824-2true assume !true; 3#L826-1true assume !true; 7#L826-2true [2018-12-02 01:50:35,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:50:35,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2018-12-02 01:50:35,392 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:50:35,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:50:35,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:50:35,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:50:35,455 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2018-12-02 01:50:35,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:50:35,455 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:50:35,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:50:35,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 01:50:35,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 01:50:35,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 01:50:35,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 01:50:35,475 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-02 01:50:35,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 01:50:35,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 01:50:35,485 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-12-02 01:50:35,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 01:50:35,492 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2018-12-02 01:50:35,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 01:50:35,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2018-12-02 01:50:35,494 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-12-02 01:50:35,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2018-12-02 01:50:35,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2018-12-02 01:50:35,498 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-12-02 01:50:35,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2018-12-02 01:50:35,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-02 01:50:35,499 INFO L705 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-12-02 01:50:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2018-12-02 01:50:35,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-12-02 01:50:35,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-02 01:50:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2018-12-02 01:50:35,516 INFO L728 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-12-02 01:50:35,516 INFO L608 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2018-12-02 01:50:35,516 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-02 01:50:35,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2018-12-02 01:50:35,517 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2018-12-02 01:50:35,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-02 01:50:35,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-02 01:50:35,517 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-02 01:50:35,517 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-02 01:50:35,518 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.alloc(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 143#L-1 havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 117#L826-2 [2018-12-02 01:50:35,518 INFO L796 eck$LassoCheckResult]: Loop: 117#L826-2 assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 127#L824-2 assume !(0 != main_#t~nondet27);havoc main_#t~nondet27; 116#L826-1 assume !(0 != main_#t~nondet29);havoc main_#t~nondet29; 117#L826-2 [2018-12-02 01:50:35,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:50:35,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2018-12-02 01:50:35,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:50:35,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:50:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:50:35,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:50:35,527 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2018-12-02 01:50:35,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:50:35,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:50:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,528 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-02 01:50:35,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 01:50:35,532 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2018-12-02 01:50:35,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 01:50:35,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 01:50:35,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 01:50:35,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 01:50:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 01:50:35,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 01:50:35 BoogieIcfgContainer [2018-12-02 01:50:35,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-02 01:50:35,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 01:50:35,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 01:50:35,613 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 01:50:35,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:50:35" (3/4) ... [2018-12-02 01:50:35,615 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-02 01:50:35,636 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4da2b77b-516e-4a1b-8ec3-8da2ca37728e/bin-2019/uautomizer/witness.graphml [2018-12-02 01:50:35,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 01:50:35,636 INFO L168 Benchmark]: Toolchain (without parser) took 969.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.7 MB in the beginning and 1.0 GB in the end (delta: -59.7 MB). Peak memory consumption was 66.6 MB. Max. memory is 11.5 GB. [2018-12-02 01:50:35,637 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. [2018-12-02 01:50:35,637 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-12-02 01:50:35,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.49 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. [2018-12-02 01:50:35,638 INFO L168 Benchmark]: Boogie Preprocessor took 19.85 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. [2018-12-02 01:50:35,638 INFO L168 Benchmark]: RCFGBuilder took 280.43 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-12-02 01:50:35,638 INFO L168 Benchmark]: BuchiAutomizer took 297.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2018-12-02 01:50:35,639 INFO L168 Benchmark]: Witness Printer took 23.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 01:50:35,640 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 316.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.49 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 19.85 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 280.43 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 297.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. * Witness Printer took 23.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (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 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 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: 823]: 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 {cursor=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d8028b=0, \result=0, end_point=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@67253331=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7023f8f=0, NULL=0, list=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@67253331=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1db7dc8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1db7dc8f=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67b29d5a=0, next=0, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@555a665c=0, cursor=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c8c66af=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6488f2cf=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 823]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L822] static list_t list; Loop: [L823] COND TRUE __VERIFIER_nondet_int() [L824] COND FALSE !(__VERIFIER_nondet_int()) [L826] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...