./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/ldv-regression/test20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/ldv-regression/test20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8 --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 d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:00:57,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:00:57,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:00:57,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:00:57,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:00:57,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:00:57,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:00:57,839 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:00:57,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:00:57,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:00:57,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:00:57,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:00:57,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:00:57,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:00:57,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:00:57,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:00:57,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:00:57,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:00:57,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:00:57,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:00:57,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:00:57,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:00:57,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:00:57,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:00:57,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:00:57,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:00:57,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:00:57,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:00:57,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:00:57,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:00:57,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:00:57,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:00:57,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:00:57,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:00:57,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:00:57,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:00:57,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:00:57,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:00:57,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:00:57,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:00:57,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:00:57,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 14:00:57,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:00:57,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:00:57,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:00:57,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:00:57,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:00:57,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:00:57,879 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:00:57,879 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 14:00:57,879 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 14:00:57,879 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 14:00:57,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:00:57,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:00:57,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 14:00:57,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:00:57,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:00:57,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:00:57,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:00:57,883 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 14:00:57,883 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_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d70ec4f924a7b66c3c5b4c9f4ff09d3682a4c192bf1d70fa04fe14236f51f678 [2022-12-13 14:00:58,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:00:58,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:00:58,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:00:58,072 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:00:58,073 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:00:58,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-regression/test20.c [2022-12-13 14:01:00,677 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:01:00,836 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:01:00,836 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/sv-benchmarks/c/ldv-regression/test20.c [2022-12-13 14:01:00,840 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/data/0f3b38a19/23c5b60113e14ab2aa412b51b6edef22/FLAG06ed0b2dc [2022-12-13 14:01:00,853 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/data/0f3b38a19/23c5b60113e14ab2aa412b51b6edef22 [2022-12-13 14:01:00,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:01:00,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:01:00,858 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:01:00,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:01:00,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:01:00,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:01:00" (1/1) ... [2022-12-13 14:01:00,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32129f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:00, skipping insertion in model container [2022-12-13 14:01:00,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:01:00" (1/1) ... [2022-12-13 14:01:00,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:01:00,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:01:00,993 WARN L237 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_0905e910-1af4-4385-80d8-c4403e2f801d/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2022-12-13 14:01:00,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:01:01,009 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:01:01,019 WARN L237 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_0905e910-1af4-4385-80d8-c4403e2f801d/sv-benchmarks/c/ldv-regression/test20.c[377,390] [2022-12-13 14:01:01,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:01:01,034 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:01:01,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01 WrapperNode [2022-12-13 14:01:01,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:01:01,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:01:01,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:01:01,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:01:01,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,059 INFO L138 Inliner]: procedures = 12, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-12-13 14:01:01,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:01:01,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:01:01,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:01:01,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:01:01,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,073 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:01:01,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:01:01,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:01:01,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:01:01,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (1/1) ... [2022-12-13 14:01:01,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 14:01:01,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:01:01,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 14:01:01,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 14:01:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:01:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:01:01,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:01:01,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:01:01,196 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:01:01,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:01:01,254 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:01:01,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:01:01,260 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:01:01,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:01:01 BoogieIcfgContainer [2022-12-13 14:01:01,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:01:01,263 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 14:01:01,263 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 14:01:01,267 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 14:01:01,268 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:01:01,268 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 02:01:00" (1/3) ... [2022-12-13 14:01:01,269 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c3510cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:01:01, skipping insertion in model container [2022-12-13 14:01:01,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:01:01,269 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:01:01" (2/3) ... [2022-12-13 14:01:01,269 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7c3510cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 02:01:01, skipping insertion in model container [2022-12-13 14:01:01,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 14:01:01,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:01:01" (3/3) ... [2022-12-13 14:01:01,271 INFO L332 chiAutomizerObserver]: Analyzing ICFG test20.c [2022-12-13 14:01:01,322 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 14:01:01,323 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 14:01:01,323 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 14:01:01,323 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 14:01:01,323 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 14:01:01,323 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 14:01:01,323 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 14:01:01,323 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 14:01:01,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2022-12-13 14:01:01,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 14:01:01,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 14:01:01,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 02:01:01 BoogieIcfgContainer [2022-12-13 14:01:01,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 14:01:01,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:01:01,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:01:01,351 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:01:01,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:01:01" (3/4) ... [2022-12-13 14:01:01,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:01:01,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:01:01,356 INFO L158 Benchmark]: Toolchain (without parser) took 498.41ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 98.0MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 14:01:01,357 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 130.2MB in the beginning and 130.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:01:01,357 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.81ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 114.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 14:01:01,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.51ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 113.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:01:01,359 INFO L158 Benchmark]: Boogie Preprocessor took 14.29ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 112.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:01:01,359 INFO L158 Benchmark]: RCFGBuilder took 187.14ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 103.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 14:01:01,360 INFO L158 Benchmark]: BuchiAutomizer took 86.52ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 98.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:01:01,360 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 98.0MB in the end (delta: 519.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:01:01,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 130.2MB in the beginning and 130.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.81ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 114.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.51ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 113.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.29ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 112.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 187.14ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 103.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 86.52ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 98.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 98.0MB in the end (delta: 519.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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: 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-12-13 14:01:01,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0905e910-1af4-4385-80d8-c4403e2f801d/bin/uautomizer-uyxdKDjOR8/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 Result: TRUE