./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF --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 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:32:05,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:32:05,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:32:05,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:32:05,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:32:05,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:32:05,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:32:05,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:32:05,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:32:05,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:32:05,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:32:05,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:32:05,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:32:05,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:32:05,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:32:05,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:32:05,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:32:05,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:32:05,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:32:05,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:32:05,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:32:05,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:32:05,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:32:05,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:32:05,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:32:05,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:32:05,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:32:05,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:32:05,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:32:05,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:32:05,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:32:05,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:32:05,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:32:05,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:32:05,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:32:05,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:32:05,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:32:05,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:32:05,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:32:05,289 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:32:05,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:32:05,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 05:32:05,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:32:05,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:32:05,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:32:05,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:32:05,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:32:05,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:32:05,346 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:32:05,346 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:32:05,346 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:32:05,346 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:32:05,347 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:32:05,348 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:32:05,348 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:32:05,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:32:05,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:32:05,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:32:05,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:32:05,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:32:05,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:32:05,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:32:05,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:32:05,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:32:05,350 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:32:05,350 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:32:05,351 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:32:05,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:32:05,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:32:05,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:32:05,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:32:05,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:32:05,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:32:05,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:32:05,354 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:32:05,354 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_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4be4b344509b887bc91f2389f98de1e4ff745494aee0f078864fd49e79b0b4b8 [2021-11-20 05:32:05,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:32:05,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:32:05,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:32:05,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:32:05,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:32:05,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-11-20 05:32:05,757 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/data/d21b15e28/3d060df062a340fda54e675559236eeb/FLAGb92819ee0 [2021-11-20 05:32:06,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:32:06,235 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2021-11-20 05:32:06,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/data/d21b15e28/3d060df062a340fda54e675559236eeb/FLAGb92819ee0 [2021-11-20 05:32:06,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/data/d21b15e28/3d060df062a340fda54e675559236eeb [2021-11-20 05:32:06,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:32:06,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:32:06,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:06,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:32:06,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:32:06,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc764b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06, skipping insertion in model container [2021-11-20 05:32:06,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:32:06,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:32:06,809 WARN L230 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_2293263b-02a9-4c02-8e09-6afa5cb6702c/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-11-20 05:32:06,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:06,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:32:06,852 WARN L230 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_2293263b-02a9-4c02-8e09-6afa5cb6702c/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i[893,906] [2021-11-20 05:32:06,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:32:06,883 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:32:06,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06 WrapperNode [2021-11-20 05:32:06,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:32:06,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:06,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:32:06,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:32:06,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,928 INFO L137 Inliner]: procedures = 16, calls = 14, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 105 [2021-11-20 05:32:06,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:32:06,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:32:06,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:32:06,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:32:06,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:32:06,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:32:06,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:32:06,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:32:06,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (1/1) ... [2021-11-20 05:32:06,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:06,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:07,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:07,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:32:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:32:07,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:32:07,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:32:07,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:32:07,131 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:32:07,132 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:32:07,342 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:32:07,348 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:32:07,361 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 05:32:07,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:07 BoogieIcfgContainer [2021-11-20 05:32:07,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:32:07,365 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:32:07,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:32:07,368 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:32:07,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:32:07,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:32:06" (1/3) ... [2021-11-20 05:32:07,386 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cf1344b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:32:07, skipping insertion in model container [2021-11-20 05:32:07,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:32:07,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:32:06" (2/3) ... [2021-11-20 05:32:07,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cf1344b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:32:07, skipping insertion in model container [2021-11-20 05:32:07,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:32:07,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:07" (3/3) ... [2021-11-20 05:32:07,388 INFO L388 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2021-11-20 05:32:07,462 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:32:07,477 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:32:07,481 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:32:07,481 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:32:07,481 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:32:07,481 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:32:07,481 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:32:07,481 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:32:07,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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) [2021-11-20 05:32:07,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-11-20 05:32:07,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:32:07,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:32:07,531 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 05:32:07,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:07,532 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:32:07,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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) [2021-11-20 05:32:07,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-11-20 05:32:07,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:32:07,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:32:07,537 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-20 05:32:07,537 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:32:07,543 INFO L791 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post4#1, main_#t~post5#1, main_#t~nondet3#1, main_#t~post6#1, main_#t~post7#1, main_~in~0#1, main_~inlen~0#1, main_~bufferlen~0#1, main_~buf~0#1, main_~buflim~0#1;havoc main_~in~0#1;main_~inlen~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~bufferlen~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_~buf~0#1;havoc main_~buflim~0#1; 8#L31true assume main_~bufferlen~0#1 > 1; 36#L31-1true assume main_~inlen~0#1 > 0; 25#L32true assume main_~bufferlen~0#1 < main_~inlen~0#1; 24#L33true main_~buf~0#1 := 0;main_~in~0#1 := 0;main_~buflim~0#1 := main_~bufferlen~0#1 - 2; 20#L37-2true [2021-11-20 05:32:07,544 INFO L793 eck$LassoCheckResult]: Loop: 20#L37-2true assume !!(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1; 18#L39true assume !(main_~buf~0#1 == main_~buflim~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~buf~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 31#L18true assume !(0 == __VERIFIER_assert_~cond#1); 15#L18-2true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~buf~0#1 < main_~bufferlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L18-3true assume !(0 == __VERIFIER_assert_~cond#1); 5#L18-5true assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~buf~0#1;main_~buf~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 6#L44true main_#t~post5#1 := main_~in~0#1;main_~in~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~in~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 16#L18-6true assume !(0 == __VERIFIER_assert_~cond#1); 11#L18-8true assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~in~0#1 < main_~inlen~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 29#L18-9true assume !(0 == __VERIFIER_assert_~cond#1); 32#L18-11true assume { :end_inline___VERIFIER_assert } true; 20#L37-2true [2021-11-20 05:32:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:07,557 INFO L85 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2021-11-20 05:32:07,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:07,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625396248] [2021-11-20 05:32:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:07,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:32:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,680 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:32:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1774709709, now seen corresponding path program 1 times [2021-11-20 05:32:07,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:07,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469671809] [2021-11-20 05:32:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:07,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,740 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:32:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:32:07,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash 72534311, now seen corresponding path program 1 times [2021-11-20 05:32:07,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:32:07,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933792826] [2021-11-20 05:32:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:32:07,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:32:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,818 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:32:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:32:07,845 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:32:08,183 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:32:08,183 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:32:08,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:32:08,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:32:08,184 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 05:32:08,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:32:08,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:32:08,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2021-11-20 05:32:08,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:32:08,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:32:08,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,281 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,461 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:32:08,462 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 05:32:08,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:08,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:08,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 05:32:08,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:32:08,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 05:32:08,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:08,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:08,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:08,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 05:32:08,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 05:32:08,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 05:32:08,706 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 05:32:08,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:08,714 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 05:32:08,714 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 05:32:08,714 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 05:32:08,714 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 05:32:08,714 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 05:32:08,714 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,714 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 05:32:08,714 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 05:32:08,715 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2021-11-20 05:32:08,715 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 05:32:08,715 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 05:32:08,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 05:32:08,869 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 05:32:08,873 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 05:32:08,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:08,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:08,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 05:32:08,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 05:32:08,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 05:32:08,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 05:32:08,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 05:32:08,900 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 05:32:08,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 05:32:08,905 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 05:32:08,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 05:32:08,915 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 05:32:08,926 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-20 05:32:08,926 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 05:32:08,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:32:08,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:32:08,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:32:08,935 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 05:32:08,935 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 05:32:08,936 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 05:32:08,936 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~bufferlen~0#1, ULTIMATE.start_main_~buf~0#1) = 1*ULTIMATE.start_main_~bufferlen~0#1 - 1*ULTIMATE.start_main_~buf~0#1 Supporting invariants [] [2021-11-20 05:32:08,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 05:32:08,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:08,976 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 05:32:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:32:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:09,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 05:32:09,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:32:09,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:32:09,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:32:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:32:09,309 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-11-20 05:32:09,310 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-20 05:32:09,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 38 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 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 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) Result 106 states and 134 transitions. Complement of second has 9 states. [2021-11-20 05:32:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-20 05:32:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-11-20 05:32:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2021-11-20 05:32:09,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 11 letters. [2021-11-20 05:32:09,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:32:09,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 17 letters. Loop has 11 letters. [2021-11-20 05:32:09,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:32:09,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 6 letters. Loop has 22 letters. [2021-11-20 05:32:09,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 05:32:09,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 134 transitions. [2021-11-20 05:32:09,512 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 05:32:09,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 0 states and 0 transitions. [2021-11-20 05:32:09,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 05:32:09,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 05:32:09,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 05:32:09,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:32:09,516 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:32:09,516 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:32:09,516 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 05:32:09,516 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:32:09,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 05:32:09,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 05:32:09,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 05:32:09,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:32:09 BoogieIcfgContainer [2021-11-20 05:32:09,525 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:32:09,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:32:09,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:32:09,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:32:09,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:32:07" (3/4) ... [2021-11-20 05:32:09,534 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 05:32:09,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:32:09,537 INFO L158 Benchmark]: Toolchain (without parser) took 2925.94ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 71.6MB in the beginning and 74.0MB in the end (delta: -2.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2021-11-20 05:32:09,538 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 87.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:32:09,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.54ms. Allocated memory is still 113.2MB. Free memory was 71.4MB in the beginning and 87.1MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:32:09,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.33ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:32:09,545 INFO L158 Benchmark]: Boogie Preprocessor took 45.39ms. Allocated memory is still 113.2MB. Free memory was 85.4MB in the beginning and 84.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:32:09,545 INFO L158 Benchmark]: RCFGBuilder took 388.64ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 74.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 05:32:09,547 INFO L158 Benchmark]: BuchiAutomizer took 2159.85ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 73.9MB in the beginning and 74.9MB in the end (delta: -1.1MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-11-20 05:32:09,547 INFO L158 Benchmark]: Witness Printer took 4.31ms. Allocated memory is still 136.3MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:32:09,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 87.9MB in the beginning and 87.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.54ms. Allocated memory is still 113.2MB. Free memory was 71.4MB in the beginning and 87.1MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.33ms. Allocated memory is still 113.2MB. Free memory was 87.1MB in the beginning and 85.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.39ms. Allocated memory is still 113.2MB. Free memory was 85.4MB in the beginning and 84.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.64ms. Allocated memory is still 113.2MB. Free memory was 84.3MB in the beginning and 74.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2159.85ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 73.9MB in the beginning and 74.9MB in the end (delta: -1.1MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 4.31ms. Allocated memory is still 136.3MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function bufferlen + -1 * buf and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 47 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 30 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 62ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 05:32:09,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:32:09,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2293263b-02a9-4c02-8e09-6afa5cb6702c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE