./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/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 0.1.25-f470102 [2019-12-07 10:08:13,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:08:13,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:08:13,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:08:13,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:08:13,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:08:13,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:08:13,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:08:13,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:08:13,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:08:13,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:08:13,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:08:13,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:08:13,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:08:13,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:08:13,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:08:13,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:08:13,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:08:13,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:08:13,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:08:13,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:08:13,114 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:08:13,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:08:13,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:08:13,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:08:13,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:08:13,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:08:13,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:08:13,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:08:13,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:08:13,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:08:13,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:08:13,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:08:13,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:08:13,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:08:13,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:08:13,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:08:13,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:08:13,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:08:13,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:08:13,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:08:13,122 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 10:08:13,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:08:13,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:08:13,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:08:13,134 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:08:13,134 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:08:13,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:08:13,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:08:13,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:08:13,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:08:13,136 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:08:13,137 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:08:13,137 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:08:13,137 INFO L138 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/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/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 [2019-12-07 10:08:13,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:08:13,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:08:13,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:08:13,254 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:08:13,255 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:08:13,255 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2019-12-07 10:08:13,296 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/data/c42698bb9/e627ba16887e4f88aaa2041fce155e1d/FLAG3b9aaccca [2019-12-07 10:08:13,663 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:08:13,664 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2019-12-07 10:08:13,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/data/c42698bb9/e627ba16887e4f88aaa2041fce155e1d/FLAG3b9aaccca [2019-12-07 10:08:13,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/data/c42698bb9/e627ba16887e4f88aaa2041fce155e1d [2019-12-07 10:08:13,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:08:13,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:08:13,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:13,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:08:13,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:08:13,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f146fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13, skipping insertion in model container [2019-12-07 10:08:13,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:08:13,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:08:13,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:13,826 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:08:13,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:08:13,886 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:08:13,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13 WrapperNode [2019-12-07 10:08:13,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:08:13,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:13,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:08:13,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:08:13,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:08:13,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:08:13,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:08:13,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:08:13,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... [2019-12-07 10:08:13,935 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:08:13,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:08:13,936 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:08:13,936 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:08:13,937 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/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 [2019-12-07 10:08:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:08:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:08:14,153 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:08:14,153 INFO L287 CfgBuilder]: Removed 38 assume(true) statements. [2019-12-07 10:08:14,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:14 BoogieIcfgContainer [2019-12-07 10:08:14,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:08:14,154 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:08:14,154 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:08:14,156 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:08:14,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:14,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:08:13" (1/3) ... [2019-12-07 10:08:14,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fd49f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:14, skipping insertion in model container [2019-12-07 10:08:14,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:14,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:08:13" (2/3) ... [2019-12-07 10:08:14,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6fd49f59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:08:14, skipping insertion in model container [2019-12-07 10:08:14,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:08:14,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:14" (3/3) ... [2019-12-07 10:08:14,159 INFO L371 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2019-12-07 10:08:14,190 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:08:14,190 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:08:14,190 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:08:14,190 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:08:14,190 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:08:14,190 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:08:14,191 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:08:14,191 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:08:14,201 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states. [2019-12-07 10:08:14,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2019-12-07 10:08:14,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:14,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:14,220 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:08:14,220 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:14,220 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:08:14,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states. [2019-12-07 10:08:14,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2019-12-07 10:08:14,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:14,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:14,223 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:08:14,223 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:14,228 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1; 53#L17true assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 39#L20-2true [2019-12-07 10:08:14,228 INFO L796 eck$LassoCheckResult]: Loop: 39#L20-2true assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 55#L21-2true assume !true; 39#L20-2true [2019-12-07 10:08:14,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-12-07 10:08:14,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:14,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744190946] [2019-12-07 10:08:14,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,304 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1591, now seen corresponding path program 1 times [2019-12-07 10:08:14,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:14,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275939848] [2019-12-07 10:08:14,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:08:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:08:14,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275939848] [2019-12-07 10:08:14,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 10:08:14,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-07 10:08:14,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528551015] [2019-12-07 10:08:14,327 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-12-07 10:08:14,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:08:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 10:08:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 10:08:14,338 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-12-07 10:08:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:08:14,345 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2019-12-07 10:08:14,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 10:08:14,346 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 62 transitions. [2019-12-07 10:08:14,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2019-12-07 10:08:14,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 38 states and 41 transitions. [2019-12-07 10:08:14,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2019-12-07 10:08:14,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2019-12-07 10:08:14,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 41 transitions. [2019-12-07 10:08:14,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:08:14,353 INFO L688 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-12-07 10:08:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 41 transitions. [2019-12-07 10:08:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-07 10:08:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 10:08:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2019-12-07 10:08:14,372 INFO L711 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-12-07 10:08:14,372 INFO L591 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-12-07 10:08:14,372 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:08:14,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 41 transitions. [2019-12-07 10:08:14,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2019-12-07 10:08:14,373 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:08:14,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:08:14,373 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:08:14,373 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:08:14,373 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY 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; 148#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; 130#L20-2 [2019-12-07 10:08:14,373 INFO L796 eck$LassoCheckResult]: Loop: 130#L20-2 assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 131#L21-2 assume !(main_~i~0 < main_~len~0 && main_~j~0 < main_~limit~0); 130#L20-2 [2019-12-07 10:08:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:14,374 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 2 times [2019-12-07 10:08:14,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:14,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409976394] [2019-12-07 10:08:14,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,380 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:14,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:14,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2019-12-07 10:08:14,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:14,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824893228] [2019-12-07 10:08:14,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,386 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:14,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:08:14,386 INFO L82 PathProgramCache]: Analyzing trace with hash 959532, now seen corresponding path program 1 times [2019-12-07 10:08:14,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:08:14,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452832726] [2019-12-07 10:08:14,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:08:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:08:14,395 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:08:14,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:08:14 BoogieIcfgContainer [2019-12-07 10:08:14,462 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:08:14,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:08:14,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:08:14,462 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:08:14,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:08:14" (3/4) ... [2019-12-07 10:08:14,465 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 10:08:14,490 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ed7e249-ab6e-4dfb-a926-87cac5a1b08e/bin/uautomizer/witness.graphml [2019-12-07 10:08:14,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:08:14,492 INFO L168 Benchmark]: Toolchain (without parser) took 811.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 948.9 MB in the beginning and 1.0 GB in the end (delta: -93.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:14,492 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:14,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:14,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:14,494 INFO L168 Benchmark]: Boogie Preprocessor took 20.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:14,494 INFO L168 Benchmark]: RCFGBuilder took 218.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:14,495 INFO L168 Benchmark]: BuchiAutomizer took 307.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:08:14,495 INFO L168 Benchmark]: Witness Printer took 28.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:08:14,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -154.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.98 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 307.88 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Witness Printer took 28.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 38 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 62 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=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@728e437=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@56706a37=0, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@247bc8ed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6d562b7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@545327ea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5cf70c34=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@8332a04=0, len=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@780fe797=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75a9960d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@74991e5d=0, limit=0} - 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...