./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8 --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 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d --- 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-e04fb08 [2022-11-16 12:52:59,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:52:59,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:52:59,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:52:59,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:52:59,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:52:59,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:52:59,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:52:59,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:52:59,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:52:59,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:52:59,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:52:59,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:52:59,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:52:59,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:52:59,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:52:59,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:52:59,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:52:59,225 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:52:59,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:52:59,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:52:59,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:52:59,241 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:52:59,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:52:59,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:52:59,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:52:59,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:52:59,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:52:59,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:52:59,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:52:59,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:52:59,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:52:59,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:52:59,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:52:59,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:52:59,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:52:59,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:52:59,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:52:59,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:52:59,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:52:59,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:52:59,265 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 12:52:59,316 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:52:59,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:52:59,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:52:59,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:52:59,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:52:59,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:52:59,319 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:52:59,320 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 12:52:59,320 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 12:52:59,320 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 12:52:59,321 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 12:52:59,322 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 12:52:59,322 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 12:52:59,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:52:59,322 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:52:59,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:52:59,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:52:59,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:52:59,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:52:59,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 12:52:59,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 12:52:59,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 12:52:59,324 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:52:59,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:52:59,327 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 12:52:59,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:52:59,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 12:52:59,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:52:59,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:52:59,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:52:59,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:52:59,331 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 12:52:59,331 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_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2022-11-16 12:52:59,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:52:59,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:52:59,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:52:59,694 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:52:59,695 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:52:59,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-11-16 12:52:59,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/data/d2975038c/4a6e8e4c5bcd437f9d1feefc13afbb24/FLAG26d83ef18 [2022-11-16 12:53:00,373 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:53:00,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-11-16 12:53:00,381 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/data/d2975038c/4a6e8e4c5bcd437f9d1feefc13afbb24/FLAG26d83ef18 [2022-11-16 12:53:00,713 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/data/d2975038c/4a6e8e4c5bcd437f9d1feefc13afbb24 [2022-11-16 12:53:00,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:53:00,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:53:00,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:53:00,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:53:00,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:53:00,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:00,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@551852b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00, skipping insertion in model container [2022-11-16 12:53:00,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:00,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:53:00,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:53:00,928 WARN L229 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_b5d0aaf9-d896-45d0-9d65-83dfa417c778/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-11-16 12:53:00,930 WARN L229 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_b5d0aaf9-d896-45d0-9d65-83dfa417c778/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-11-16 12:53:00,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:53:00,942 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:53:00,957 WARN L229 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_b5d0aaf9-d896-45d0-9d65-83dfa417c778/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-11-16 12:53:00,958 WARN L229 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_b5d0aaf9-d896-45d0-9d65-83dfa417c778/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-11-16 12:53:00,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:53:00,975 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:53:00,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00 WrapperNode [2022-11-16 12:53:00,976 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:53:00,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:53:00,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:53:00,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:53:00,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:00,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,012 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-11-16 12:53:01,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:53:01,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:53:01,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:53:01,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:53:01,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:53:01,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:53:01,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:53:01,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:53:01,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (1/1) ... [2022-11-16 12:53:01,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:01,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:01,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:01,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 12:53:01,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:53:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-16 12:53:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-16 12:53:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:53:01,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:53:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:53:01,130 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-16 12:53:01,131 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-16 12:53:01,214 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:53:01,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:53:01,376 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:53:01,385 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:53:01,385 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:53:01,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:01 BoogieIcfgContainer [2022-11-16 12:53:01,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:53:01,389 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 12:53:01,389 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 12:53:01,395 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 12:53:01,396 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:53:01,397 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 12:53:00" (1/3) ... [2022-11-16 12:53:01,398 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cbd731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:53:01, skipping insertion in model container [2022-11-16 12:53:01,398 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:53:01,398 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:53:00" (2/3) ... [2022-11-16 12:53:01,400 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33cbd731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 12:53:01, skipping insertion in model container [2022-11-16 12:53:01,400 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 12:53:01,401 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:01" (3/3) ... [2022-11-16 12:53:01,404 INFO L332 chiAutomizerObserver]: Analyzing ICFG afterrec_2calls-1.c [2022-11-16 12:53:01,484 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 12:53:01,484 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 12:53:01,484 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 12:53:01,484 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 12:53:01,484 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 12:53:01,485 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 12:53:01,485 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 12:53:01,485 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 12:53:01,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 12:53:01,533 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 12:53:01,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:53:01,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:53:01,545 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:53:01,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:53:01,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 12:53:01,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-16 12:53:01,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-16 12:53:01,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 12:53:01,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 12:53:01,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-16 12:53:01,553 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-16 12:53:01,561 INFO L748 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 15#L23true call f(4);< 12#fENTRYtrue [2022-11-16 12:53:01,562 INFO L750 eck$LassoCheckResult]: Loop: 12#fENTRYtrue ~n := #in~n; 5#L9true assume !(~n < 3);#t~post6 := ~n;~n := #t~post6 - 1;havoc #t~post6; 8#L11true call f2(~n);< 6#f2ENTRYtrue ~n := #in~n; 14#L16true assume !(~n < 3);#t~post7 := ~n;~n := #t~post7 - 1;havoc #t~post7; 16#L18true call f(~n);< 12#fENTRYtrue [2022-11-16 12:53:01,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash 38808, now seen corresponding path program 1 times [2022-11-16 12:53:01,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:01,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783396734] [2022-11-16 12:53:01,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:01,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:53:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:53:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:01,751 INFO L85 PathProgramCache]: Analyzing trace with hash 891958565, now seen corresponding path program 1 times [2022-11-16 12:53:01,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:01,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506637369] [2022-11-16 12:53:01,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:01,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,782 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:53:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,804 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:53:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 904560508, now seen corresponding path program 1 times [2022-11-16 12:53:01,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:53:01,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987417198] [2022-11-16 12:53:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:53:01,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:53:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:53:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:53:01,869 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:53:02,058 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:53:02,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:53:02,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:53:02,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:53:02,060 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 12:53:02,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:53:02,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:53:02,061 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-1.c_Iteration1_Loop [2022-11-16 12:53:02,061 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:53:02,061 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:53:02,082 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,126 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,130 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,231 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:53:02,232 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 12:53:02,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:02,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:02,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 12:53:02,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:53:02,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 12:53:02,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:02,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:02,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:02,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 12:53:02,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 12:53:02,322 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 12:53:02,419 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 12:53:02,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:02,432 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 12:53:02,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 12:53:02,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 12:53:02,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 12:53:02,432 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 12:53:02,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 12:53:02,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 12:53:02,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-1.c_Iteration1_Loop [2022-11-16 12:53:02,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 12:53:02,433 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 12:53:02,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,463 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 12:53:02,508 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 12:53:02,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 12:53:02,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:02,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:02,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 12:53:02,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 12:53:02,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 12:53:02,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 12:53:02,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 12:53:02,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 12:53:02,539 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 12:53:02,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 12:53:02,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 12:53:02,554 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 12:53:02,563 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-16 12:53:02,564 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 12:53:02,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 12:53:02,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:53:02,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 12:53:02,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 12:53:02,579 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 12:53:02,580 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 12:53:02,581 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 12:53:02,581 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2022-11-16 12:53:02,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:02,591 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 12:53:02,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:53:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:53:02,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:53:02,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:53:02,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:53:02,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:53:02,884 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-11-16 12:53:02,886 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:53:03,080 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 62 transitions. Complement of second has 26 states. [2022-11-16 12:53:03,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-16 12:53:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:53:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2022-11-16 12:53:03,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-16 12:53:03,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:53:03,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-16 12:53:03,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:53:03,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-16 12:53:03,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 12:53:03,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 62 transitions. [2022-11-16 12:53:03,097 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:53:03,100 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2022-11-16 12:53:03,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 12:53:03,101 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 12:53:03,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 12:53:03,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:53:03,102 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:53:03,102 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:53:03,102 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:53:03,102 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 12:53:03,103 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:53:03,103 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 12:53:03,103 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 12:53:03,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 12:53:03 BoogieIcfgContainer [2022-11-16 12:53:03,110 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 12:53:03,111 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:53:03,111 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:53:03,111 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:53:03,112 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:53:01" (3/4) ... [2022-11-16 12:53:03,115 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:53:03,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:53:03,116 INFO L158 Benchmark]: Toolchain (without parser) took 2397.54ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.7MB in the beginning and 65.6MB in the end (delta: -1.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2022-11-16 12:53:03,117 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 80.1MB in the beginning and 80.0MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:53:03,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.84ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 75.5MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:53:03,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.50ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 74.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:53:03,119 INFO L158 Benchmark]: Boogie Preprocessor took 28.85ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.4MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:53:03,119 INFO L158 Benchmark]: RCFGBuilder took 344.24ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 64.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 12:53:03,120 INFO L158 Benchmark]: BuchiAutomizer took 1721.87ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 66.1MB in the end (delta: -2.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-11-16 12:53:03,120 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 119.5MB. Free memory was 66.1MB in the beginning and 65.6MB in the end (delta: 508.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:53:03,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 80.1MB in the beginning and 80.0MB in the end (delta: 80.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.84ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 75.5MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.50ms. Allocated memory is still 98.6MB. Free memory was 75.5MB in the beginning and 74.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.85ms. Allocated memory is still 98.6MB. Free memory was 74.3MB in the beginning and 73.4MB in the end (delta: 911.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 344.24ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 64.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1721.87ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 64.1MB in the beginning and 66.1MB in the end (delta: -2.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 119.5MB. Free memory was 66.1MB in the beginning and 65.6MB in the end (delta: 508.7kB). 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 7 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg94 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 65ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 12:53:03,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:53:03,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5d0aaf9-d896-45d0-9d65-83dfa417c778/bin/uautomizer-tPACEb0tL8/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