./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC --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 515641d47b866a31074baa0701cc4e191cb58e69 ............................................................................................................................................................................................................................................................................................................................................ 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 0.2.0-7b2dab5 [2021-10-11 00:30:12,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:30:12,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:30:12,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:30:12,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:30:12,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:30:12,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:30:12,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:30:12,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:30:12,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:30:12,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:30:12,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:30:12,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:30:12,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:30:12,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:30:12,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:30:12,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:30:12,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:30:12,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:30:12,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:30:12,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:30:12,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:30:12,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:30:12,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:30:12,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:30:12,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:30:12,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:30:12,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:30:12,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:30:12,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:30:12,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:30:12,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:30:12,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:30:12,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:30:12,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:30:12,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:30:12,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:30:12,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:30:12,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:30:12,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:30:12,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:30:12,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:30:12,479 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:30:12,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:30:12,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:30:12,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:30:12,482 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:30:12,482 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:30:12,482 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:30:12,482 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:30:12,483 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:30:12,483 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:30:12,484 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:30:12,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:30:12,485 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:30:12,485 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:30:12,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:30:12,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:30:12,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:30:12,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:30:12,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:30:12,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:30:12,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:30:12,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:30:12,487 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:30:12,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:30:12,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:30:12,488 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:30:12,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:30:12,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:30:12,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:30:12,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:30:12,491 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:30:12,491 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 515641d47b866a31074baa0701cc4e191cb58e69 [2021-10-11 00:30:12,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:30:12,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:30:12,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:30:12,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:30:12,847 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:30:12,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-10-11 00:30:12,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/data/1aae777bf/92a36c9e526d43358c2dc218cd817267/FLAGa1d225915 [2021-10-11 00:30:13,459 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:30:13,462 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-10-11 00:30:13,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/data/1aae777bf/92a36c9e526d43358c2dc218cd817267/FLAGa1d225915 [2021-10-11 00:30:13,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/data/1aae777bf/92a36c9e526d43358c2dc218cd817267 [2021-10-11 00:30:13,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:30:13,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:30:13,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:13,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:30:13,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:30:13,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:13" (1/1) ... [2021-10-11 00:30:13,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ac6987 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:13, skipping insertion in model container [2021-10-11 00:30:13,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:30:13" (1/1) ... [2021-10-11 00:30:13,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:30:13,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:30:14,039 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-10-11 00:30:14,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:14,065 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:30:14,079 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-10-11 00:30:14,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:30:14,103 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:30:14,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14 WrapperNode [2021-10-11 00:30:14,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:30:14,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:14,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:30:14,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:30:14,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:30:14,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:30:14,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:30:14,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:30:14,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... [2021-10-11 00:30:14,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:30:14,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:30:14,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:30:14,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:30:14,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:30:14,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:30:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:30:14,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:30:14,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:30:14,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:30:14,733 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-11 00:30:14,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:14 BoogieIcfgContainer [2021-10-11 00:30:14,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:30:14,738 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:30:14,738 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:30:14,741 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:30:14,742 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:14,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:30:13" (1/3) ... [2021-10-11 00:30:14,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@97fc04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:30:14, skipping insertion in model container [2021-10-11 00:30:14,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:14,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:30:14" (2/3) ... [2021-10-11 00:30:14,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@97fc04a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:30:14, skipping insertion in model container [2021-10-11 00:30:14,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:30:14,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:14" (3/3) ... [2021-10-11 00:30:14,750 INFO L389 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2021-10-11 00:30:14,827 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:30:14,828 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:30:14,828 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:30:14,828 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:30:14,828 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:30:14,829 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:30:14,829 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:30:14,829 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:30:14,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states. [2021-10-11 00:30:14,883 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2021-10-11 00:30:14,883 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:14,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:14,890 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:30:14,890 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:30:14,890 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:30:14,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states. [2021-10-11 00:30:14,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2021-10-11 00:30:14,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:14,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:14,901 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:30:14,901 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:30:14,909 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 15#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_#t~post11, main_#t~post12, 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~nondet3;havoc main_#t~nondet3; 56#L31true assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 49#L34-2true [2021-10-11 00:30:14,909 INFO L796 eck$LassoCheckResult]: Loop: 49#L34-2true assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 58#L35-2true assume !true; 49#L34-2true [2021-10-11 00:30:14,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-11 00:30:14,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:14,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3272886] [2021-10-11 00:30:14,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,116 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:15,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1623, now seen corresponding path program 1 times [2021-10-11 00:30:15,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:15,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777109735] [2021-10-11 00:30:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:30:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:30:15,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777109735] [2021-10-11 00:30:15,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:30:15,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 00:30:15,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745767564] [2021-10-11 00:30:15,172 INFO L811 eck$LassoCheckResult]: loop already infeasible [2021-10-11 00:30:15,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:30:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:30:15,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:30:15,194 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2021-10-11 00:30:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:30:15,210 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2021-10-11 00:30:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:30:15,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 63 transitions. [2021-10-11 00:30:15,215 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2021-10-11 00:30:15,219 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 39 states and 42 transitions. [2021-10-11 00:30:15,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-11 00:30:15,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-11 00:30:15,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 42 transitions. [2021-10-11 00:30:15,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:30:15,223 INFO L692 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-11 00:30:15,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 42 transitions. [2021-10-11 00:30:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 00:30:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 00:30:15,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-10-11 00:30:15,251 INFO L715 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-11 00:30:15,252 INFO L595 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-11 00:30:15,252 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:30:15,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 42 transitions. [2021-10-11 00:30:15,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2021-10-11 00:30:15,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:30:15,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:30:15,254 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:30:15,254 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:30:15,254 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 140#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_#t~post11, main_#t~post12, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet3;havoc main_#t~nondet3; 141#L31 assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 146#L34-2 [2021-10-11 00:30:15,255 INFO L796 eck$LassoCheckResult]: Loop: 146#L34-2 assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 147#L35-2 assume !(main_~i~0 < main_~len~0 && main_~j~0 < main_~limit~0); 146#L34-2 [2021-10-11 00:30:15,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:15,256 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2021-10-11 00:30:15,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:15,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912401053] [2021-10-11 00:30:15,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,271 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:15,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:15,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2021-10-11 00:30:15,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:15,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752126656] [2021-10-11 00:30:15,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,314 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,320 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:30:15,321 INFO L82 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2021-10-11 00:30:15,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:30:15,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931161842] [2021-10-11 00:30:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:30:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:30:15,352 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:30:15,356 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:30:15,587 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-10-11 00:30:15,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:30:15 BoogieIcfgContainer [2021-10-11 00:30:15,698 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:30:15,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:30:15,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:30:15,698 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:30:15,699 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:30:14" (3/4) ... [2021-10-11 00:30:15,702 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-11 00:30:15,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_367f4011-a9c9-496d-be89-ba8ca8d439a3/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:30:15,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:30:15,732 INFO L168 Benchmark]: Toolchain (without parser) took 1925.35 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 67.2 MB in the beginning and 97.6 MB in the end (delta: -30.5 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:15,733 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory is still 53.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:15,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.68 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 70.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:15,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:15,735 INFO L168 Benchmark]: Boogie Preprocessor took 30.48 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:15,735 INFO L168 Benchmark]: RCFGBuilder took 557.43 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 48.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:15,736 INFO L168 Benchmark]: BuchiAutomizer took 960.06 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 48.3 MB in the beginning and 98.7 MB in the end (delta: -50.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:30:15,737 INFO L168 Benchmark]: Witness Printer took 32.99 ms. Allocated memory is still 132.1 MB. Free memory was 98.7 MB in the beginning and 97.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:30:15,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 96.5 MB. Free memory is still 53.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.68 ms. Allocated memory is still 96.5 MB. Free memory was 67.2 MB in the beginning and 70.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.43 ms. Allocated memory is still 96.5 MB. Free memory was 70.9 MB in the beginning and 69.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.48 ms. Allocated memory is still 96.5 MB. Free memory was 69.2 MB in the beginning and 67.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 557.43 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 48.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 960.06 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 48.3 MB in the beginning and 98.7 MB in the end (delta: -50.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 32.99 ms. Allocated memory is still 132.1 MB. Free memory was 98.7 MB in the beginning and 97.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 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 39 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 39 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 63 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: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=26727} State at position 1 is {NULL=0, bufsize=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@249c352e=0, NULL=26729, \result=0, NULL=26727, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@582ff32f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@79fa763a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@347ae5a5=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e688f70=0, NULL=26728, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@363d9a9f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c34860c=0, len=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3412c5ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@959ed2b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@77b04f4f=0, NULL=0, limit=-4} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...