./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY --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 64bit --witnessprinter.graph.data.programhash fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:35:26,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:35:26,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:35:26,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:35:26,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:35:26,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:35:26,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:35:26,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:35:26,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:35:26,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:35:26,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:35:26,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:35:26,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:35:26,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:35:26,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:35:26,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:35:26,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:35:26,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:35:26,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:35:26,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:35:26,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:35:26,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:35:26,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:35:26,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:35:26,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:35:26,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:35:26,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:35:26,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:35:26,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:35:26,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:35:26,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:35:26,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:35:26,465 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:35:26,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:35:26,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:35:26,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:35:26,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:35:26,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:35:26,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:35:26,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:35:26,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:35:26,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-07 08:35:26,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:35:26,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:35:26,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:35:26,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:35:26,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:35:26,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:35:26,542 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:35:26,543 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 08:35:26,543 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 08:35:26,543 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 08:35:26,545 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 08:35:26,545 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 08:35:26,545 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 08:35:26,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:35:26,546 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 08:35:26,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:35:26,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:35:26,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 08:35:26,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 08:35:26,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 08:35:26,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:35:26,548 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 08:35:26,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:35:26,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 08:35:26,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:35:26,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:35:26,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:35:26,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:35:26,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:35:26,554 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 08:35:26,554 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_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 [2021-11-07 08:35:26,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:35:26,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:35:26,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:35:26,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:35:26,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:35:26,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2021-11-07 08:35:27,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/data/0f6a3ce8f/a3122aaa8a594a01b3c047c6ae9caecd/FLAG3d0a486e6 [2021-11-07 08:35:27,572 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:35:27,573 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2021-11-07 08:35:27,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/data/0f6a3ce8f/a3122aaa8a594a01b3c047c6ae9caecd/FLAG3d0a486e6 [2021-11-07 08:35:27,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/data/0f6a3ce8f/a3122aaa8a594a01b3c047c6ae9caecd [2021-11-07 08:35:27,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:35:27,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:35:27,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:35:27,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:35:27,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:35:27,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:35:27" (1/1) ... [2021-11-07 08:35:27,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e57ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:27, skipping insertion in model container [2021-11-07 08:35:27,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:35:27" (1/1) ... [2021-11-07 08:35:27,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:35:28,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:35:28,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:35:28,161 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:35:28,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:35:28,216 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:35:28,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28 WrapperNode [2021-11-07 08:35:28,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:35:28,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:35:28,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:35:28,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:35:28,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:35:28,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:35:28,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:35:28,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:35:28,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,272 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:35:28,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:35:28,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:35:28,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:35:28,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (1/1) ... [2021-11-07 08:35:28,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 08:35:28,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:35:28,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 08:35:28,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 08:35:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:35:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:35:28,525 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:35:28,525 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-07 08:35:28,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:35:28 BoogieIcfgContainer [2021-11-07 08:35:28,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:35:28,528 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 08:35:28,529 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 08:35:28,532 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 08:35:28,533 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:35:28,533 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 08:35:27" (1/3) ... [2021-11-07 08:35:28,534 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6251ab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:35:28, skipping insertion in model container [2021-11-07 08:35:28,534 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:35:28,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:35:28" (2/3) ... [2021-11-07 08:35:28,535 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6251ab9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 08:35:28, skipping insertion in model container [2021-11-07 08:35:28,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 08:35:28,535 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:35:28" (3/3) ... [2021-11-07 08:35:28,537 INFO L389 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2021-11-07 08:35:28,589 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 08:35:28,590 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 08:35:28,590 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 08:35:28,590 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 08:35:28,590 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 08:35:28,590 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 08:35:28,591 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 08:35:28,591 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 08:35:28,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-07 08:35:28,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:35:28,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:35:28,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:35:28,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:35:28,629 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:35:28,629 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 08:35:28,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-07 08:35:28,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-07 08:35:28,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 08:35:28,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 08:35:28,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 08:35:28,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-07 08:35:28,637 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~oldx~0, main_~x~0, main_~y~0;havoc main_~oldx~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L21true assume !!(main_~x~0 >= -2147483647); 4#L22true assume !!(main_~y~0 >= -2147483647); 6#L23-2true [2021-11-07 08:35:28,638 INFO L793 eck$LassoCheckResult]: Loop: 6#L23-2true assume !!(0 != ~unnamed0~0~true);main_~oldx~0 := main_~x~0;main_~x~0 := -main_~y~0;main_~y~0 := main_~oldx~0; 6#L23-2true [2021-11-07 08:35:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:35:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2021-11-07 08:35:28,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:35:28,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743957968] [2021-11-07 08:35:28,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:35:28,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:35:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,742 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:35:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,768 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:35:28,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:35:28,772 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-07 08:35:28,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:35:28,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320694064] [2021-11-07 08:35:28,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:35:28,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:35:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,784 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:35:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,791 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:35:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:35:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2021-11-07 08:35:28,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:35:28,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128278808] [2021-11-07 08:35:28,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:35:28,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:35:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,803 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:35:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:35:28,812 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:35:28,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 08:35:28 BoogieIcfgContainer [2021-11-07 08:35:28,966 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 08:35:28,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:35:28,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:35:28,968 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:35:28,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:35:28" (3/4) ... [2021-11-07 08:35:28,971 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-07 08:35:29,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:35:29,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:35:29,019 INFO L168 Benchmark]: Toolchain (without parser) took 1048.29 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.8 MB in the beginning and 61.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 17.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:35:29,019 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:35:29,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.93 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.5 MB in the beginning and 90.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:35:29,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.86 ms. Allocated memory is still 113.2 MB. Free memory was 90.5 MB in the beginning and 89.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:35:29,023 INFO L168 Benchmark]: Boogie Preprocessor took 17.42 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 88.5 MB in the end (delta: 790.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:35:29,024 INFO L168 Benchmark]: RCFGBuilder took 246.10 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 80.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 08:35:29,025 INFO L168 Benchmark]: BuchiAutomizer took 438.08 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 63.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-07 08:35:29,026 INFO L168 Benchmark]: Witness Printer took 49.14 ms. Allocated memory is still 113.2 MB. Free memory was 63.3 MB in the beginning and 61.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:35:29,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.93 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 63.5 MB in the beginning and 90.5 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.86 ms. Allocated memory is still 113.2 MB. Free memory was 90.5 MB in the beginning and 89.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.42 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 88.5 MB in the end (delta: 790.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 246.10 ms. Allocated memory is still 113.2 MB. Free memory was 88.5 MB in the beginning and 80.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 438.08 ms. Allocated memory is still 113.2 MB. Free memory was 80.8 MB in the beginning and 63.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 49.14 ms. Allocated memory is still 113.2 MB. Free memory was 63.3 MB in the beginning and 61.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: nont1 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {oldx=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2d4d38=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a00c9a5=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L15] int oldx; [L16] int x; [L17] int y; [L18] x = __VERIFIER_nondet_int() [L19] y = __VERIFIER_nondet_int() [L21] COND FALSE !(!(x>=-2147483647)) [L22] COND FALSE !(!(y>=-2147483647)) Loop: [L23] COND TRUE \read(true) [L24] oldx = x [L25] x = -y [L26] y = oldx End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-07 08:35:29,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8cd67e-6242-45ac-9c02-3954c15b3304/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)