./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt --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 903ca868ca7711e93ab2999f02bf985edb50eb0c ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:18:04,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:18:04,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:18:04,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:18:04,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:18:04,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:18:04,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:18:04,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:18:04,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:18:04,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:18:04,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:18:04,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:18:04,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:18:04,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:18:04,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:18:04,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:18:04,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:18:04,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:18:04,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:18:04,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:18:04,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:18:04,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:18:04,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:18:04,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:18:04,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:18:04,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:18:04,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:18:04,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:18:04,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:18:04,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:18:04,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:18:04,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:18:04,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:18:04,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:18:04,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:18:04,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:18:04,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:18:04,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:18:04,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:18:04,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:18:04,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:18:04,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:18:04,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:18:04,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:18:04,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:18:04,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:18:04,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:18:04,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:18:04,832 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:18:04,832 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:18:04,833 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:18:04,833 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:18:04,833 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:18:04,834 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:18:04,834 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:18:04,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:18:04,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:18:04,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:18:04,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:18:04,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:18:04,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:18:04,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:18:04,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:18:04,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:18:04,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:18:04,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:18:04,838 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:18:04,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:18:04,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:18:04,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:18:04,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:18:04,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:18:04,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:18:04,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:18:04,842 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:18:04,843 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_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 903ca868ca7711e93ab2999f02bf985edb50eb0c [2021-10-13 01:18:05,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:18:05,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:18:05,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:18:05,185 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:18:05,187 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:18:05,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cdfpl/square_4.i [2021-10-13 01:18:05,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/data/7918dceb4/d434b753a4a84aae8b6dd7b5859e5bb0/FLAG17f863e35 [2021-10-13 01:18:05,795 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:18:05,795 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/sv-benchmarks/c/floats-cdfpl/square_4.i [2021-10-13 01:18:05,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/data/7918dceb4/d434b753a4a84aae8b6dd7b5859e5bb0/FLAG17f863e35 [2021-10-13 01:18:06,162 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/data/7918dceb4/d434b753a4a84aae8b6dd7b5859e5bb0 [2021-10-13 01:18:06,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:18:06,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:18:06,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:18:06,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:18:06,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:18:06,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447070b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06, skipping insertion in model container [2021-10-13 01:18:06,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:18:06,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:18:06,424 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_b974342e-587a-45b5-ae4b-580786f8ed23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2021-10-13 01:18:06,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:18:06,436 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:18:06,453 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_b974342e-587a-45b5-ae4b-580786f8ed23/sv-benchmarks/c/floats-cdfpl/square_4.i[1131,1144] [2021-10-13 01:18:06,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:18:06,468 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:18:06,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06 WrapperNode [2021-10-13 01:18:06,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:18:06,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:18:06,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:18:06,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:18:06,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:18:06,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:18:06,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:18:06,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:18:06,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:18:06,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:18:06,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:18:06,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:18:06,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (1/1) ... [2021-10-13 01:18:06,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:06,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:06,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:06,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:18:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:18:06,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:18:06,901 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:18:06,901 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:18:06,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:18:06 BoogieIcfgContainer [2021-10-13 01:18:06,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:18:06,904 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:18:06,904 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:18:06,907 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:18:06,908 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:18:06,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:18:06" (1/3) ... [2021-10-13 01:18:06,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cb26332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:18:06, skipping insertion in model container [2021-10-13 01:18:06,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:18:06,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:18:06" (2/3) ... [2021-10-13 01:18:06,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4cb26332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:18:06, skipping insertion in model container [2021-10-13 01:18:06,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:18:06,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:18:06" (3/3) ... [2021-10-13 01:18:06,915 INFO L389 chiAutomizerObserver]: Analyzing ICFG square_4.i [2021-10-13 01:18:06,967 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:18:06,967 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:18:06,967 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:18:06,967 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:18:06,968 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:18:06,968 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:18:06,968 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:18:06,968 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:18:06,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2021-10-13 01:18:07,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:18:07,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:18:07,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:18:07 BoogieIcfgContainer [2021-10-13 01:18:07,015 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:18:07,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:18:07,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:18:07,017 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:18:07,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:18:06" (3/4) ... [2021-10-13 01:18:07,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:18:07,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:18:07,024 INFO L168 Benchmark]: Toolchain (without parser) took 854.15 ms. Allocated memory is still 102.8 MB. Free memory was 68.5 MB in the beginning and 61.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:07,025 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:07,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.80 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 77.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:07,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.79 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 76.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:07,029 INFO L168 Benchmark]: Boogie Preprocessor took 47.27 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 75.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:07,030 INFO L168 Benchmark]: RCFGBuilder took 341.78 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 67.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:07,031 INFO L168 Benchmark]: BuchiAutomizer took 111.40 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 61.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:07,032 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 102.8 MB. Free memory was 61.8 MB in the beginning and 61.5 MB in the end (delta: 331.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:07,038 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.80 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 77.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.79 ms. Allocated memory is still 102.8 MB. Free memory was 77.8 MB in the beginning and 76.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.27 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 75.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 341.78 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 67.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 111.40 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 61.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.43 ms. Allocated memory is still 102.8 MB. Free memory was 61.8 MB in the beginning and 61.5 MB in the end (delta: 331.8 kB). 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 Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.0s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:18:07,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b974342e-587a-45b5-ae4b-580786f8ed23/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...