./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Rotation180-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD --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 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:21,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:21,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:21,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:21,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:21,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:21,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:21,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:21,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:21,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:21,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:21,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:21,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:21,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:21,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:21,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:21,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:21,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:21,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:21,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:21,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:22,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:22,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:22,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:22,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:22,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:22,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:22,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:22,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:22,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:22,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:22,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:22,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:22,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:22,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:22,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:22,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:22,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:22,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:22,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:22,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:22,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-29 00:03:22,079 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:22,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:22,080 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:22,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:22,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:22,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:22,083 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:22,083 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-29 00:03:22,084 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-29 00:03:22,084 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-29 00:03:22,085 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-29 00:03:22,085 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-29 00:03:22,085 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-29 00:03:22,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-29 00:03:22,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-29 00:03:22,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:22,087 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-29 00:03:22,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:22,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-29 00:03:22,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:22,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:22,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:22,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:22,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:22,089 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-29 00:03:22,090 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_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fde09a60595b1ccfdc4082db9307f665f7d9aa8adcf6aa0f827e624d65c22a35 [2021-10-29 00:03:22,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:22,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:22,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:22,427 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:22,428 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:22,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/Rotation180-1.c [2021-10-29 00:03:22,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/data/d6f275982/54556a7e309549eca49cc3614fb5e5fb/FLAG42e6d74fe [2021-10-29 00:03:23,026 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:23,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/sv-benchmarks/c/termination-crafted/Rotation180-1.c [2021-10-29 00:03:23,039 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/data/d6f275982/54556a7e309549eca49cc3614fb5e5fb/FLAG42e6d74fe [2021-10-29 00:03:23,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/data/d6f275982/54556a7e309549eca49cc3614fb5e5fb [2021-10-29 00:03:23,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:23,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:23,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:23,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:23,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:23,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3283e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23, skipping insertion in model container [2021-10-29 00:03:23,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:23,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:23,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:23,662 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:23,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:23,689 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:23,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23 WrapperNode [2021-10-29 00:03:23,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:23,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:23,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:23,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:23,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:23,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:23,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:23,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:23,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:23,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:23,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:23,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:23,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (1/1) ... [2021-10-29 00:03:23,745 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-29 00:03:23,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:23,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:23,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:23,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:23,947 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:23,947 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 00:03:23,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:23 BoogieIcfgContainer [2021-10-29 00:03:23,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:23,951 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-29 00:03:23,951 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-29 00:03:23,954 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-29 00:03:23,955 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:23,955 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:03:23" (1/3) ... [2021-10-29 00:03:23,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78fa5452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:03:23, skipping insertion in model container [2021-10-29 00:03:23,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:23,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:23" (2/3) ... [2021-10-29 00:03:23,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@78fa5452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:03:23, skipping insertion in model container [2021-10-29 00:03:23,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-29 00:03:23,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:23" (3/3) ... [2021-10-29 00:03:23,959 INFO L389 chiAutomizerObserver]: Analyzing ICFG Rotation180-1.c [2021-10-29 00:03:24,005 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-29 00:03:24,006 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-29 00:03:24,006 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-29 00:03:24,006 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-29 00:03:24,006 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-29 00:03:24,006 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-29 00:03:24,006 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-29 00:03:24,007 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-29 00:03:24,020 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) [2021-10-29 00:03:24,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:24,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:24,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:24,043 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-29 00:03:24,044 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:24,044 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-29 00:03:24,044 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) [2021-10-29 00:03:24,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-29 00:03:24,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-29 00:03:24,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-29 00:03:24,047 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-29 00:03:24,047 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-29 00:03:24,054 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 [2021-10-29 00:03:24,054 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 [2021-10-29 00:03:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:24,061 INFO L85 PathProgramCache]: Analyzing trace with hash 30949, now seen corresponding path program 1 times [2021-10-29 00:03:24,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:24,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230751533] [2021-10-29 00:03:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:24,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,238 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,276 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:24,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:24,292 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-10-29 00:03:24,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:24,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332351592] [2021-10-29 00:03:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:24,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,309 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:24,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:24,331 INFO L85 PathProgramCache]: Analyzing trace with hash 959439, now seen corresponding path program 1 times [2021-10-29 00:03:24,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:24,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926389160] [2021-10-29 00:03:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:24,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,345 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:24,360 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:24,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:03:24 BoogieIcfgContainer [2021-10-29 00:03:24,515 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-29 00:03:24,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:24,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:24,516 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:24,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:23" (3/4) ... [2021-10-29 00:03:24,519 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-29 00:03:24,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:03:24,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:24,557 INFO L168 Benchmark]: Toolchain (without parser) took 1141.93 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 65.2 MB in the beginning and 97.2 MB in the end (delta: -32.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:24,557 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:24,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.12 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 74.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:24,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 73.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:24,560 INFO L168 Benchmark]: Boogie Preprocessor took 17.68 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.8 MB in the end (delta: 907.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:24,561 INFO L168 Benchmark]: RCFGBuilder took 213.19 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 65.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:24,562 INFO L168 Benchmark]: BuchiAutomizer took 564.28 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 98.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:24,562 INFO L168 Benchmark]: Witness Printer took 39.59 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 97.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:24,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 98.6 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.12 ms. Allocated memory is still 98.6 MB. Free memory was 65.1 MB in the beginning and 74.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 73.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.68 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.8 MB in the end (delta: 907.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 213.19 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 65.3 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 564.28 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 65.3 MB in the beginning and 98.9 MB in the end (delta: -33.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 39.59 ms. Allocated memory is still 121.6 MB. Free memory was 98.9 MB in the beginning and 97.2 MB in the end (delta: 1.7 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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@3453fe43=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ea6f3e8=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! [2021-10-29 00:03:24,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99cb6733-60fa-4802-b3d1-6aa8c92803b6/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...