./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be --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 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 .................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-e943c26 [2021-10-21 19:46:08,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:46:08,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:46:08,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:46:08,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:46:08,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:46:09,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:46:09,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:46:09,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:46:09,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:46:09,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:46:09,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:46:09,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:46:09,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:46:09,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:46:09,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:46:09,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:46:09,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:46:09,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:46:09,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:46:09,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:46:09,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:46:09,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:46:09,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:46:09,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:46:09,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:46:09,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:46:09,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:46:09,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:46:09,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:46:09,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:46:09,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:46:09,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:46:09,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:46:09,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:46:09,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:46:09,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:46:09,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:46:09,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:46:09,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:46:09,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:46:09,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:46:09,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:46:09,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:46:09,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:46:09,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:46:09,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:46:09,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:46:09,148 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:46:09,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:46:09,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:46:09,149 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:46:09,151 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:46:09,151 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:46:09,151 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:46:09,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:46:09,152 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:46:09,153 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:46:09,153 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:46:09,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:46:09,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:46:09,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:46:09,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:46:09,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:46:09,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:46:09,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:46:09,155 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:46:09,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:46:09,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:46:09,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:46:09,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:46:09,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:46:09,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:46:09,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:46:09,161 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:46:09,162 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_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2021-10-21 19:46:09,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:46:09,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:46:09,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:46:09,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:46:09,609 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:46:09,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-10-21 19:46:09,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/data/c8cadb4ef/16fb9440ab464727ac20d105d47cb185/FLAGd484ab725 [2021-10-21 19:46:10,292 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:46:10,293 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2021-10-21 19:46:10,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/data/c8cadb4ef/16fb9440ab464727ac20d105d47cb185/FLAGd484ab725 [2021-10-21 19:46:10,659 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/data/c8cadb4ef/16fb9440ab464727ac20d105d47cb185 [2021-10-21 19:46:10,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:46:10,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:46:10,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:46:10,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:46:10,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:46:10,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:46:10" (1/1) ... [2021-10-21 19:46:10,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237b6bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:10, skipping insertion in model container [2021-10-21 19:46:10,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:46:10" (1/1) ... [2021-10-21 19:46:10,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:46:10,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:46:10,949 WARN L228 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_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-10-21 19:46:10,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:46:10,980 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:46:10,997 WARN L228 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_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2021-10-21 19:46:11,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:46:11,025 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:46:11,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11 WrapperNode [2021-10-21 19:46:11,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:46:11,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:46:11,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:46:11,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:46:11,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:46:11,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:46:11,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:46:11,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:46:11,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:46:11,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:46:11,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:46:11,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:46:11,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (1/1) ... [2021-10-21 19:46:11,156 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:46:11,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:46:11,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:46:11,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:46:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:46:11,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:46:11,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:46:11,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:46:11,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:46:11,671 INFO L299 CfgBuilder]: Removed 38 assume(true) statements. [2021-10-21 19:46:11,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:11 BoogieIcfgContainer [2021-10-21 19:46:11,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:46:11,679 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:46:11,693 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:46:11,697 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:46:11,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:11,699 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:46:10" (1/3) ... [2021-10-21 19:46:11,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25ff3ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:46:11, skipping insertion in model container [2021-10-21 19:46:11,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:11,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:46:11" (2/3) ... [2021-10-21 19:46:11,702 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25ff3ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:46:11, skipping insertion in model container [2021-10-21 19:46:11,702 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:46:11,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:11" (3/3) ... [2021-10-21 19:46:11,704 INFO L389 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2021-10-21 19:46:11,805 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:46:11,806 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:46:11,806 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:46:11,806 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:46:11,806 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:46:11,807 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:46:11,807 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:46:11,807 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:46:11,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 59 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:11,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2021-10-21 19:46:11,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:46:11,867 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:46:11,874 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:46:11,874 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:46:11,875 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:46:11,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 59 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:11,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2021-10-21 19:46:11,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:46:11,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:46:11,888 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:46:11,888 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:46:11,896 INFO L791 eck$LassoCheckResult]: Stem: 51#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); 41#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; 8#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; 42#L34-2true [2021-10-21 19:46:11,897 INFO L793 eck$LassoCheckResult]: Loop: 42#L34-2true assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 18#L35-2true assume !true; 42#L34-2true [2021-10-21 19:46:11,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:11,910 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-10-21 19:46:11,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:11,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392534989] [2021-10-21 19:46:11,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:11,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,074 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,142 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:12,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:12,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1623, now seen corresponding path program 1 times [2021-10-21 19:46:12,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:12,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854835036] [2021-10-21 19:46:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:46:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:46:12,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:46:12,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854835036] [2021-10-21 19:46:12,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854835036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:46:12,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:46:12,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:46:12,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904408645] [2021-10-21 19:46:12,235 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:46:12,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:46:12,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:46:12,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:46:12,276 INFO L87 Difference]: Start difference. First operand has 59 states, 58 states have (on average 1.396551724137931) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 2.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:12,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:46:12,292 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2021-10-21 19:46:12,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:46:12,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 63 transitions. [2021-10-21 19:46:12,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2021-10-21 19:46:12,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 39 states and 42 transitions. [2021-10-21 19:46:12,320 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-21 19:46:12,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2021-10-21 19:46:12,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 42 transitions. [2021-10-21 19:46:12,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:46:12,323 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-21 19:46:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 42 transitions. [2021-10-21 19:46:12,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-21 19:46:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:46:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2021-10-21 19:46:12,365 INFO L704 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-21 19:46:12,365 INFO L587 BuchiCegarLoop]: Abstraction has 39 states and 42 transitions. [2021-10-21 19:46:12,366 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:46:12,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 42 transitions. [2021-10-21 19:46:12,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2021-10-21 19:46:12,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:46:12,370 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:46:12,370 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:46:12,371 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:46:12,372 INFO L791 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 138#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_#t~post11, main_#t~post12, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet3;havoc main_#t~nondet3; 136#L31 assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 137#L34-2 [2021-10-21 19:46:12,372 INFO L793 eck$LassoCheckResult]: Loop: 137#L34-2 assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 129#L35-2 assume !(main_~i~0 < main_~len~0 && main_~j~0 < main_~limit~0); 137#L34-2 [2021-10-21 19:46:12,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:12,374 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 2 times [2021-10-21 19:46:12,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:12,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519318398] [2021-10-21 19:46:12,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,409 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,447 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:12,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:12,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2021-10-21 19:46:12,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:12,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963804101] [2021-10-21 19:46:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:12,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:46:12,484 INFO L82 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2021-10-21 19:46:12,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:46:12,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102989298] [2021-10-21 19:46:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:46:12,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:46:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,515 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:46:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:46:12,554 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:46:13,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:46:13 BoogieIcfgContainer [2021-10-21 19:46:13,101 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:46:13,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:46:13,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:46:13,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:46:13,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:46:11" (3/4) ... [2021-10-21 19:46:13,107 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:46:13,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:46:13,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:46:13,150 INFO L168 Benchmark]: Toolchain (without parser) took 2485.16 ms. Allocated memory is still 119.5 MB. Free memory was 80.1 MB in the beginning and 89.0 MB in the end (delta: -8.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:13,151 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 119.5 MB. Free memory is still 96.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:13,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.79 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 93.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:13,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:13,153 INFO L168 Benchmark]: Boogie Preprocessor took 61.44 ms. Allocated memory is still 119.5 MB. Free memory was 91.6 MB in the beginning and 90.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:13,154 INFO L168 Benchmark]: RCFGBuilder took 537.37 ms. Allocated memory is still 119.5 MB. Free memory was 90.6 MB in the beginning and 78.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:13,155 INFO L168 Benchmark]: BuchiAutomizer took 1422.43 ms. Allocated memory is still 119.5 MB. Free memory was 78.0 MB in the beginning and 91.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:46:13,156 INFO L168 Benchmark]: Witness Printer took 46.23 ms. Allocated memory is still 119.5 MB. Free memory was 90.4 MB in the beginning and 89.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:46:13,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 119.5 MB. Free memory is still 96.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.79 ms. Allocated memory is still 119.5 MB. Free memory was 79.9 MB in the beginning and 93.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.83 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.44 ms. Allocated memory is still 119.5 MB. Free memory was 91.6 MB in the beginning and 90.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 537.37 ms. Allocated memory is still 119.5 MB. Free memory was 90.6 MB in the beginning and 78.5 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1422.43 ms. Allocated memory is still 119.5 MB. Free memory was 78.0 MB in the beginning and 91.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 46.23 ms. Allocated memory is still 119.5 MB. Free memory was 90.4 MB in the beginning and 89.0 MB in the end (delta: 1.4 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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 23.4ms 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, 0.0ms 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=2655} State at position 1 is {NULL=0, bufsize=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4c61751a=0, NULL=2656, \result=0, NULL=2655, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@509eba2c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@645b582e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@40493f32=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a730be=0, NULL=2657, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20175e96=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cbb4a78=0, len=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@108e469b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@74965364=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@4127b828=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! [2021-10-21 19:46:13,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ad65fd5-7c0e-4437-a936-ec8d9bdc0130/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...