./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_3.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_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/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_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/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_d50002d5-2846-4af9-bae5-f418db1af030/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 df17c4a5cf1f8b8dec3dbd48ac37c795f9b13b26 ....................................................................................................................................................................................................................... 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 00:52:25,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:52:25,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:52:25,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:52:25,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:52:25,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:52:25,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:52:25,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:52:25,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:52:25,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:52:25,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:52:25,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:52:25,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:52:25,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:52:25,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:52:25,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:52:25,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:52:25,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:52:25,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:52:25,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:52:25,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:52:25,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:52:25,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:52:25,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:52:25,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:52:25,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:52:25,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:52:25,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:52:25,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:52:25,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:52:25,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:52:25,458 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:52:25,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:52:25,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:52:25,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:52:25,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:52:25,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:52:25,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:52:25,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:52:25,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:52:25,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:52:25,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:52:25,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:52:25,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:52:25,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:52:25,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:52:25,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:52:25,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:52:25,517 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:52:25,517 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:52:25,518 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:52:25,518 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:52:25,518 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:52:25,518 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:52:25,519 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:52:25,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:52:25,519 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:52:25,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:52:25,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:52:25,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:52:25,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:52:25,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:52:25,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:52:25,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:52:25,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:52:25,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:52:25,522 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:52:25,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:52:25,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:52:25,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:52:25,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:52:25,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:52:25,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:52:25,525 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:52:25,526 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:52:25,526 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_d50002d5-2846-4af9-bae5-f418db1af030/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df17c4a5cf1f8b8dec3dbd48ac37c795f9b13b26 [2021-10-13 00:52:25,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:52:25,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:52:25,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:52:25,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:52:25,889 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:52:25,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/floats-cdfpl/square_3.i [2021-10-13 00:52:25,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/data/79d7402a0/3df0cc946e8f41c0bb9c0e451ff7c9ed/FLAGf5dee96b9 [2021-10-13 00:52:26,491 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:52:26,491 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/sv-benchmarks/c/floats-cdfpl/square_3.i [2021-10-13 00:52:26,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/data/79d7402a0/3df0cc946e8f41c0bb9c0e451ff7c9ed/FLAGf5dee96b9 [2021-10-13 00:52:26,840 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/data/79d7402a0/3df0cc946e8f41c0bb9c0e451ff7c9ed [2021-10-13 00:52:26,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:52:26,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:52:26,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:52:26,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:52:26,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:52:26,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:52:26" (1/1) ... [2021-10-13 00:52:26,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d9b59d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:26, skipping insertion in model container [2021-10-13 00:52:26,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:52:26" (1/1) ... [2021-10-13 00:52:26,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:52:26,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:52:27,156 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_d50002d5-2846-4af9-bae5-f418db1af030/sv-benchmarks/c/floats-cdfpl/square_3.i[1131,1144] [2021-10-13 00:52:27,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:52:27,185 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:52:27,209 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_d50002d5-2846-4af9-bae5-f418db1af030/sv-benchmarks/c/floats-cdfpl/square_3.i[1131,1144] [2021-10-13 00:52:27,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:52:27,232 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:52:27,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27 WrapperNode [2021-10-13 00:52:27,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:52:27,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:52:27,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:52:27,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:52:27,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:52:27,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:52:27,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:52:27,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:52:27,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:52:27,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:52:27,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:52:27,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:52:27,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (1/1) ... [2021-10-13 00:52:27,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:52:27,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:52:27,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:52:27,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:52:27,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:52:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:52:27,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:52:27,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:52:27,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:52:27,568 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 00:52:27,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:52:27 BoogieIcfgContainer [2021-10-13 00:52:27,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:52:27,572 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:52:27,572 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:52:27,575 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:52:27,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:52:27,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:52:26" (1/3) ... [2021-10-13 00:52:27,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520cd89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:52:27, skipping insertion in model container [2021-10-13 00:52:27,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:52:27,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:52:27" (2/3) ... [2021-10-13 00:52:27,579 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@520cd89c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:52:27, skipping insertion in model container [2021-10-13 00:52:27,579 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:52:27,579 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:52:27" (3/3) ... [2021-10-13 00:52:27,581 INFO L389 chiAutomizerObserver]: Analyzing ICFG square_3.i [2021-10-13 00:52:27,634 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:52:27,634 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:52:27,634 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:52:27,635 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:52:27,635 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:52:27,635 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:52:27,635 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:52:27,635 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:52:27,652 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 00:52:27,681 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:52:27,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:52:27,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:52:27 BoogieIcfgContainer [2021-10-13 00:52:27,687 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:52:27,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:52:27,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:52:27,690 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:52:27,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:52:27" (3/4) ... [2021-10-13 00:52:27,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:52:27,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:52:27,700 INFO L168 Benchmark]: Toolchain (without parser) took 852.64 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 53.5 MB in the beginning and 92.4 MB in the end (delta: -39.0 MB). Peak memory consumption was 1.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:27,702 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:52:27,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.94 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 53.3 MB in the beginning and 108.9 MB in the end (delta: -55.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:27,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:27,708 INFO L168 Benchmark]: Boogie Preprocessor took 19.05 ms. Allocated memory is still 132.1 MB. Free memory was 107.4 MB in the beginning and 106.5 MB in the end (delta: 893.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:52:27,709 INFO L168 Benchmark]: RCFGBuilder took 283.74 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 97.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:27,711 INFO L168 Benchmark]: BuchiAutomizer took 115.70 ms. Allocated memory is still 132.1 MB. Free memory was 97.8 MB in the beginning and 93.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:52:27,711 INFO L168 Benchmark]: Witness Printer took 5.67 ms. Allocated memory is still 132.1 MB. Free memory was 92.7 MB in the beginning and 92.4 MB in the end (delta: 270.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:52:27,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 70.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.94 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 53.3 MB in the beginning and 108.9 MB in the end (delta: -55.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.05 ms. Allocated memory is still 132.1 MB. Free memory was 107.4 MB in the beginning and 106.5 MB in the end (delta: 893.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 283.74 ms. Allocated memory is still 132.1 MB. Free memory was 106.5 MB in the beginning and 97.8 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 115.70 ms. Allocated memory is still 132.1 MB. Free memory was 97.8 MB in the beginning and 93.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.67 ms. Allocated memory is still 132.1 MB. Free memory was 92.7 MB in the beginning and 92.4 MB in the end (delta: 270.2 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 00:52:27,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d50002d5-2846-4af9-bae5-f418db1af030/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...