./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_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_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/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 751def0588f132c393a8666a5acb62e8205c40a1 ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:37:12,006 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:37:12,008 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:37:12,016 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:37:12,016 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:37:12,017 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:37:12,018 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:37:12,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:37:12,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:37:12,022 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:37:12,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:37:12,022 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:37:12,023 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:37:12,025 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:37:12,025 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:37:12,026 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:37:12,026 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:37:12,028 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:37:12,029 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:37:12,030 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:37:12,031 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:37:12,032 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:37:12,034 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:37:12,034 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:37:12,034 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:37:12,035 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:37:12,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:37:12,036 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:37:12,037 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:37:12,038 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:37:12,038 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:37:12,039 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:37:12,039 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:37:12,039 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:37:12,041 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:37:12,041 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:37:12,042 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 11:37:12,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:37:12,052 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:37:12,053 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:37:12,053 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:37:12,053 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:37:12,053 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 11:37:12,053 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 11:37:12,053 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 11:37:12,054 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:37:12,054 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:37:12,055 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:37:12,055 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:37:12,055 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 11:37:12,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 11:37:12,055 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 11:37:12,057 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:37:12,057 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:37:12,057 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 11:37:12,058 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 11:37:12,058 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:37:12,058 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:37:12,058 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 11:37:12,058 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:37:12,058 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:37:12,058 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 11:37:12,059 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 11:37:12,059 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_75fd37a4-9751-441f-8768-5b7b7e57c1c8/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 -> 751def0588f132c393a8666a5acb62e8205c40a1 [2018-11-10 11:37:12,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:37:12,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:37:12,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:37:12,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:37:12,094 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:37:12,095 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-11-10 11:37:12,140 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/data/146de9946/c0cd5dfbe5204ec7ac4efb77a981e0eb/FLAG8347eb4ce [2018-11-10 11:37:12,480 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:37:12,481 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/sv-benchmarks/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2018-11-10 11:37:12,485 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/data/146de9946/c0cd5dfbe5204ec7ac4efb77a981e0eb/FLAG8347eb4ce [2018-11-10 11:37:12,499 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/data/146de9946/c0cd5dfbe5204ec7ac4efb77a981e0eb [2018-11-10 11:37:12,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:37:12,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:37:12,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:37:12,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:37:12,506 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:37:12,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cd11db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12, skipping insertion in model container [2018-11-10 11:37:12,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:37:12,533 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:37:12,653 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:37:12,655 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:37:12,671 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:37:12,681 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:37:12,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12 WrapperNode [2018-11-10 11:37:12,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:37:12,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:37:12,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:37:12,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:37:12,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:37:12,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:37:12,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:37:12,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:37:12,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... [2018-11-10 11:37:12,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:37:12,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:37:12,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:37:12,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:37:12,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 11:37:12,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:37:12,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:37:13,158 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:37:13,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:13 BoogieIcfgContainer [2018-11-10 11:37:13,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:37:13,159 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 11:37:13,160 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 11:37:13,162 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 11:37:13,163 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:37:13,163 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:37:12" (1/3) ... [2018-11-10 11:37:13,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a68f6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:37:13, skipping insertion in model container [2018-11-10 11:37:13,164 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:37:13,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:37:12" (2/3) ... [2018-11-10 11:37:13,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a68f6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:37:13, skipping insertion in model container [2018-11-10 11:37:13,164 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 11:37:13,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:13" (3/3) ... [2018-11-10 11:37:13,166 INFO L375 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call_false-termination.i [2018-11-10 11:37:13,207 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:37:13,207 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 11:37:13,208 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 11:37:13,208 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 11:37:13,208 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:37:13,208 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:37:13,208 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 11:37:13,208 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:37:13,208 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 11:37:13,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-11-10 11:37:13,238 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 55 [2018-11-10 11:37:13,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:37:13,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:37:13,244 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 11:37:13,244 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 11:37:13,244 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 11:37:13,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2018-11-10 11:37:13,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 55 [2018-11-10 11:37:13,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:37:13,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:37:13,248 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 11:37:13,248 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 11:37:13,253 INFO L793 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1; 56#L17true assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 40#L20-3true [2018-11-10 11:37:13,253 INFO L795 eck$LassoCheckResult]: Loop: 40#L20-3true assume true; 42#L20-1true assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 57#L21-3true assume !true; 40#L20-3true [2018-11-10 11:37:13,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:37:13,257 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-11-10 11:37:13,259 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:37:13,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:37:13,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:37:13,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,334 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:37:13,335 INFO L82 PathProgramCache]: Analyzing trace with hash 41058, now seen corresponding path program 1 times [2018-11-10 11:37:13,335 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:37:13,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:37:13,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:37:13,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:37:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:37:13,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:37:13,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-10 11:37:13,360 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-11-10 11:37:13,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:37:13,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:37:13,372 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2018-11-10 11:37:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:37:13,379 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2018-11-10 11:37:13,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:37:13,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 66 transitions. [2018-11-10 11:37:13,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 39 [2018-11-10 11:37:13,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 42 states and 45 transitions. [2018-11-10 11:37:13,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2018-11-10 11:37:13,386 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-10 11:37:13,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 45 transitions. [2018-11-10 11:37:13,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 11:37:13,387 INFO L705 BuchiCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-11-10 11:37:13,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 45 transitions. [2018-11-10 11:37:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-10 11:37:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-10 11:37:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-11-10 11:37:13,408 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-11-10 11:37:13,408 INFO L608 BuchiCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-11-10 11:37:13,408 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 11:37:13,408 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 45 transitions. [2018-11-10 11:37:13,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 39 [2018-11-10 11:37:13,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 11:37:13,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 11:37:13,410 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 11:37:13,410 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 11:37:13,410 INFO L793 eck$LassoCheckResult]: Stem: 168#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 143#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1; 144#L17 assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 136#L20-3 [2018-11-10 11:37:13,411 INFO L795 eck$LassoCheckResult]: Loop: 136#L20-3 assume true; 137#L20-1 assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 140#L21-3 assume true; 161#L21-1 assume !(main_~i~0 < main_~len~0 && main_~j~0 < main_~limit~0); 136#L20-3 [2018-11-10 11:37:13,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:37:13,411 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2018-11-10 11:37:13,411 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:37:13,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:37:13,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:37:13,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:37:13,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1267241, now seen corresponding path program 1 times [2018-11-10 11:37:13,420 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:37:13,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:37:13,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,421 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 11:37:13,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:37:13,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1806877004, now seen corresponding path program 1 times [2018-11-10 11:37:13,427 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:37:13,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:37:13,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:37:13,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:37:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:37:13,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 11:37:13 BoogieIcfgContainer [2018-11-10 11:37:13,530 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 11:37:13,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:37:13,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:37:13,531 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:37:13,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:37:13" (3/4) ... [2018-11-10 11:37:13,535 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-10 11:37:13,566 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_75fd37a4-9751-441f-8768-5b7b7e57c1c8/bin-2019/uautomizer/witness.graphml [2018-11-10 11:37:13,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:37:13,567 INFO L168 Benchmark]: Toolchain (without parser) took 1065.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:37:13,568 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:37:13,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:37:13,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:37:13,570 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:37:13,570 INFO L168 Benchmark]: RCFGBuilder took 427.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:37:13,571 INFO L168 Benchmark]: BuchiAutomizer took 371.09 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:37:13,571 INFO L168 Benchmark]: Witness Printer took 35.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:37:13,574 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.10 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.58 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 427.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 371.09 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 35.07 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. * 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 42 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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 42 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 66 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: 20]: 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 {bufsize=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@74b795a9=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7777cfc=0, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@75a0cce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4ff2d58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@1c20a71d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@393bd282=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bf7e1d8=0, len=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ecb6b58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4760ef3b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@8ef4714=0, limit=-4} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int len; [L13] int i; [L14] int j; [L15] int bufsize; [L16] bufsize = __VERIFIER_nondet_int() [L17] COND FALSE !(bufsize < 0) [L18] len = __VERIFIER_nondet_int() [L19] int limit = bufsize - 4; [L20] i = 0 Loop: [L20] COND TRUE i < len [L21] j = 0 [L21] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...