./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/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 fbf3b6e80b82aab76aa646445120e7c15e1e84e0 .......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:11:57,109 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:11:57,111 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:11:57,122 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:11:57,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:11:57,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:11:57,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:11:57,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:11:57,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:11:57,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:11:57,134 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:11:57,134 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:11:57,135 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:11:57,137 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:11:57,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:11:57,145 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:11:57,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:11:57,146 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:11:57,148 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:11:57,149 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:11:57,149 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:11:57,150 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:11:57,152 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:11:57,153 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:11:57,153 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:11:57,153 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:11:57,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:11:57,155 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:11:57,156 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:11:57,157 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:11:57,157 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:11:57,157 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:11:57,157 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:11:57,158 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:11:57,158 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:11:57,160 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:11:57,160 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-10-27 06:11:57,174 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:11:57,174 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:11:57,175 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:11:57,176 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:11:57,176 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:11:57,177 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:11:57,177 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:11:57,178 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 06:11:57,178 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:11:57,179 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:11:57,179 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:11:57,180 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:11:57,181 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:11:57,181 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:11:57,181 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:11:57,181 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:11:57,181 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:11:57,181 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:11:57,182 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:11:57,182 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_6d8d087d-1e01-4817-bd70-bd1972462cdd/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 -> fbf3b6e80b82aab76aa646445120e7c15e1e84e0 [2018-10-27 06:11:57,221 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:11:57,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:11:57,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:11:57,240 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:11:57,240 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:11:57,241 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/../../sv-benchmarks/c/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i [2018-10-27 06:11:57,288 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/data/d0bf2398a/d1eaa3665f2d4bf4914a8f85e98602b2/FLAG7f3153b43 [2018-10-27 06:11:57,716 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:11:57,717 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/sv-benchmarks/c/memsafety-ext/tree_stack_true-valid-memsafety_false-termination.i [2018-10-27 06:11:57,728 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/data/d0bf2398a/d1eaa3665f2d4bf4914a8f85e98602b2/FLAG7f3153b43 [2018-10-27 06:11:57,741 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/data/d0bf2398a/d1eaa3665f2d4bf4914a8f85e98602b2 [2018-10-27 06:11:57,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:11:57,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:11:57,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:57,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:11:57,750 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:11:57,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:57" (1/1) ... [2018-10-27 06:11:57,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79405b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:57, skipping insertion in model container [2018-10-27 06:11:57,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:57" (1/1) ... [2018-10-27 06:11:57,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:11:57,807 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:11:58,080 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:58,088 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:11:58,124 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:58,166 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:11:58,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58 WrapperNode [2018-10-27 06:11:58,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:58,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:58,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:11:58,167 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:11:58,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:58,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:11:58,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:11:58,295 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:11:58,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... [2018-10-27 06:11:58,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:11:58,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:11:58,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:11:58,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:11:58,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/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 [2018-10-27 06:11:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-27 06:11:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-27 06:11:58,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:11:58,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:11:59,053 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:11:59,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:59 BoogieIcfgContainer [2018-10-27 06:11:59,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:11:59,054 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:11:59,054 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:11:59,057 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:11:59,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:59,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:11:57" (1/3) ... [2018-10-27 06:11:59,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ccedfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:59, skipping insertion in model container [2018-10-27 06:11:59,059 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:59,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:58" (2/3) ... [2018-10-27 06:11:59,060 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ccedfb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:59, skipping insertion in model container [2018-10-27 06:11:59,060 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:59,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:59" (3/3) ... [2018-10-27 06:11:59,061 INFO L375 chiAutomizerObserver]: Analyzing ICFG tree_stack_true-valid-memsafety_false-termination.i [2018-10-27 06:11:59,108 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:11:59,109 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:11:59,109 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:11:59,109 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:11:59,109 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:11:59,110 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:11:59,110 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:11:59,110 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:11:59,110 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:11:59,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-10-27 06:11:59,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-10-27 06:11:59,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:59,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:59,151 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:11:59,151 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:11:59,152 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:11:59,152 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-10-27 06:11:59,154 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-10-27 06:11:59,154 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:59,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:59,155 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:11:59,155 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:11:59,162 INFO L793 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~nondet1, main_#t~malloc18.base, main_#t~malloc18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20.base, main_#t~mem20.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~mem24.base, main_#t~mem24.offset, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 8;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset; 41#L630true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L630 45#L630-1true SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L630-1 35#L645-2true [2018-10-27 06:11:59,163 INFO L795 eck$LassoCheckResult]: Loop: 35#L645-2true assume true; 4#L632true assume !!(main_#t~nondet1 != 0);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 53#L635-2true assume !true; 30#L634-9true SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L634-9 24#L640true assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 9#L640-2true SUMMARY for call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L640-2 52#L645true assume !((main_#t~mem13.base == 0 && main_#t~mem13.offset == 0) && main_#t~nondet14 != 0);havoc main_#t~nondet14;havoc main_#t~mem13.base, main_#t~mem13.offset; 35#L645-2true [2018-10-27 06:11:59,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:59,168 INFO L82 PathProgramCache]: Analyzing trace with hash 925540, now seen corresponding path program 1 times [2018-10-27 06:11:59,169 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:59,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:59,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:59,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:59,283 INFO L82 PathProgramCache]: Analyzing trace with hash 697684895, now seen corresponding path program 1 times [2018-10-27 06:11:59,283 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:59,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:59,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:59,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:59,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:59,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:11:59,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:11:59,314 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:11:59,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:11:59,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:11:59,329 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-10-27 06:11:59,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:11:59,338 INFO L93 Difference]: Finished difference Result 62 states and 70 transitions. [2018-10-27 06:11:59,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:11:59,340 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 70 transitions. [2018-10-27 06:11:59,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-10-27 06:11:59,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 58 states and 66 transitions. [2018-10-27 06:11:59,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2018-10-27 06:11:59,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2018-10-27 06:11:59,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 66 transitions. [2018-10-27 06:11:59,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:11:59,348 INFO L705 BuchiCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-10-27 06:11:59,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 66 transitions. [2018-10-27 06:11:59,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-10-27 06:11:59,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-27 06:11:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2018-10-27 06:11:59,374 INFO L728 BuchiCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-10-27 06:11:59,374 INFO L608 BuchiCegarLoop]: Abstraction has 58 states and 66 transitions. [2018-10-27 06:11:59,374 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:11:59,375 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 66 transitions. [2018-10-27 06:11:59,376 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-10-27 06:11:59,376 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:59,376 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:59,376 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:11:59,376 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:11:59,377 INFO L793 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 140#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~nondet5, main_#t~mem6.base, main_#t~mem6.offset, main_#t~mem7.base, main_#t~mem7.offset, main_#t~mem2.base, main_#t~mem2.offset, main_#t~mem3.base, main_#t~mem3.offset, main_#t~short4, main_#t~mem8.base, main_#t~mem8.offset, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~nondet14, main_#t~malloc15.base, main_#t~malloc15.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~nondet1, main_#t~malloc18.base, main_#t~malloc18.offset, main_#t~mem19.base, main_#t~mem19.offset, main_#t~mem20.base, main_#t~mem20.offset, main_#t~mem21.base, main_#t~mem21.offset, main_#t~malloc22.base, main_#t~malloc22.offset, main_#t~mem23.base, main_#t~mem23.offset, main_#t~mem24.base, main_#t~mem24.offset, main_#t~malloc25.base, main_#t~malloc25.offset, main_#t~mem26.base, main_#t~mem26.offset, main_~root~0.base, main_~root~0.offset, main_~n~0.base, main_~n~0.offset, main_~s~0.base, main_~s~0.offset, main_~st~0.base, main_~st~0.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := 8;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~root~0.base, main_~root~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;havoc main_~n~0.base, main_~n~0.offset; 141#L630 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 0, 4); srcloc: L630 177#L630-1 SUMMARY for call write~$Pointer$(0, 0, main_~root~0.base, main_~root~0.offset + 4, 4); srcloc: L630-1 167#L645-2 [2018-10-27 06:11:59,377 INFO L795 eck$LassoCheckResult]: Loop: 167#L645-2 assume true; 134#L632 assume !!(main_#t~nondet1 != 0);havoc main_#t~nondet1;main_~n~0.base, main_~n~0.offset := main_~root~0.base, main_~root~0.offset; 136#L635-2 assume true; 171#L634-1 SUMMARY for call main_#t~mem2.base, main_#t~mem2.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L634-1 172#L634-2 main_#t~short4 := main_#t~mem2.base != 0 || main_#t~mem2.offset != 0; 173#L634-3 assume !main_#t~short4; 162#L634-7 assume !main_#t~short4;havoc main_#t~mem3.base, main_#t~mem3.offset;havoc main_#t~short4;havoc main_#t~mem2.base, main_#t~mem2.offset; 163#L634-9 SUMMARY for call main_#t~mem8.base, main_#t~mem8.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 0, 4); srcloc: L634-9 158#L640 assume !((main_#t~mem8.base == 0 && main_#t~mem8.offset == 0) && main_#t~nondet9 != 0);havoc main_#t~nondet9;havoc main_#t~mem8.base, main_#t~mem8.offset; 138#L640-2 SUMMARY for call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_~n~0.base, main_~n~0.offset + 4, 4); srcloc: L640-2 142#L645 assume !((main_#t~mem13.base == 0 && main_#t~mem13.offset == 0) && main_#t~nondet14 != 0);havoc main_#t~nondet14;havoc main_#t~mem13.base, main_#t~mem13.offset; 167#L645-2 [2018-10-27 06:11:59,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:59,377 INFO L82 PathProgramCache]: Analyzing trace with hash 925540, now seen corresponding path program 2 times [2018-10-27 06:11:59,377 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:59,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:59,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:59,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:59,398 INFO L82 PathProgramCache]: Analyzing trace with hash 499577672, now seen corresponding path program 1 times [2018-10-27 06:11:59,398 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:59,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:59,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,399 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:11:59,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:59,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1515034619, now seen corresponding path program 1 times [2018-10-27 06:11:59,415 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:59,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:59,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:59,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:59,937 WARN L179 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2018-10-27 06:12:00,269 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-10-27 06:12:00,580 WARN L179 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2018-10-27 06:12:00,767 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-10-27 06:12:00,802 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:12:00,815 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:12:00,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:12:00 BoogieIcfgContainer [2018-10-27 06:12:00,825 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:12:00,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:12:00,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:12:00,826 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:12:00,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:59" (3/4) ... [2018-10-27 06:12:00,830 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-10-27 06:12:00,875 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6d8d087d-1e01-4817-bd70-bd1972462cdd/bin-2019/uautomizer/witness.graphml [2018-10-27 06:12:00,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:12:00,876 INFO L168 Benchmark]: Toolchain (without parser) took 3131.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 951.8 MB in the beginning and 1.0 GB in the end (delta: -87.1 MB). Peak memory consumption was 94.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,877 INFO L168 Benchmark]: CDTParser took 1.78 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:00,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 930.3 MB in the beginning and 1.2 GB in the end (delta: -247.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,878 INFO L168 Benchmark]: Boogie Preprocessor took 50.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,878 INFO L168 Benchmark]: RCFGBuilder took 707.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,881 INFO L168 Benchmark]: BuchiAutomizer took 1771.85 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: 91.0 MB). Peak memory consumption was 91.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,881 INFO L168 Benchmark]: Witness Printer took 49.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:00,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.78 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 420.94 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 930.3 MB in the beginning and 1.2 GB in the end (delta: -247.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 707.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.0 MB). Peak memory consumption was 41.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1771.85 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: 91.0 MB). Peak memory consumption was 91.0 MB. Max. memory is 11.5 GB. * Witness Printer took 49.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 58 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 58 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 70 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: 632]: Nontermination argument in form of an infinite program execution. [2018-10-27 06:12:00,896 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:12:00,897 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:12:00,902 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:12:00,903 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@71bd6afa=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2cc36315=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97a2b47=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3ed59081=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ad2eca7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6e866f78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7a5de216=0, root=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5241011d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@71bd6afa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@678b0034=0, NULL=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d2bb1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@355e036b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5241011d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ee4bda0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@968bae8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f1ef335=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2c58d2a1=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3d3634f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7c7b6815=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@968bae8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@753342f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@671acc4d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@671acc4d=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7ad2eca7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1b229a05=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@6e866f78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5f1f29ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4228f476=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2c58d2a1=0, n=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@5f1f29ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@423108ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3ed59081=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@678b0034=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7659bf60=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d20d3a6=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7a5de216=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7c7b6815=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@1b229a05=0, root=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@6f6c679a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@7659bf60=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f1ef335=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ee4bda0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dc0b5b9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56d2bb1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@97a2b47=0, s=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@753342f0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dc0b5b9=0, s=0, NULL=2, n=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@3d3634f7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@2cc36315=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 631]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L629] EXPR, FCALL malloc(sizeof(*root)) [L629] struct TreeNode* root = malloc(sizeof(*root)), *n; [L630] FCALL root->left = ((void *)0) [L631] FCALL root->right = ((void *)0) Loop: [L632] COND TRUE __VERIFIER_nondet_int() [L633] n = root [L634] EXPR, FCALL n->left [L634] n->left && n->right [L634] COND FALSE !(n->left && n->right) [L640] EXPR, FCALL n->left [L640] COND FALSE !(!n->left && __VERIFIER_nondet_int()) [L645] EXPR, FCALL n->right [L645] COND FALSE !(!n->right && __VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...