./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX --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 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:40:43,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:40:43,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:40:43,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:40:43,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:40:43,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:40:43,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:40:43,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:40:43,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:40:43,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:40:43,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:40:43,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:40:43,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:40:43,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:40:43,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:40:43,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:40:43,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:40:43,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:40:43,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:40:43,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:40:43,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:40:43,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:40:43,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:40:43,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:40:43,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:40:43,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:40:43,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:40:43,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:40:43,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:40:43,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:40:43,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:40:43,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:40:43,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:40:43,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:40:43,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:40:43,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:40:43,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:40:43,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:40:43,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:40:43,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:40:43,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:40:43,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 10:40:43,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:40:43,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:40:43,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:40:43,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:40:43,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:40:43,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:40:43,912 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:40:43,912 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 10:40:43,912 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 10:40:43,912 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 10:40:43,913 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 10:40:43,914 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 10:40:43,914 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 10:40:43,914 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:40:43,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:40:43,915 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 10:40:43,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:40:43,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:40:43,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:40:43,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 10:40:43,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 10:40:43,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 10:40:43,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:40:43,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:40:43,917 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 10:40:43,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:40:43,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 10:40:43,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:40:43,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:40:43,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:40:43,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:40:43,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:40:43,921 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 10:40:43,922 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_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea [2021-11-09 10:40:44,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:40:44,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:40:44,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:40:44,238 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:40:44,239 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:40:44,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/recursive-simple/afterrec-2.c [2021-11-09 10:40:44,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/data/4ca426233/2db6d28b35774bfcad6aaa2d4114856a/FLAGee30e55ad [2021-11-09 10:40:44,885 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:40:44,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/sv-benchmarks/c/recursive-simple/afterrec-2.c [2021-11-09 10:40:44,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/data/4ca426233/2db6d28b35774bfcad6aaa2d4114856a/FLAGee30e55ad [2021-11-09 10:40:45,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/data/4ca426233/2db6d28b35774bfcad6aaa2d4114856a [2021-11-09 10:40:45,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:40:45,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:40:45,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:45,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:40:45,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:40:45,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b124b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45, skipping insertion in model container [2021-11-09 10:40:45,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:40:45,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:40:45,553 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/sv-benchmarks/c/recursive-simple/afterrec-2.c[318,331] [2021-11-09 10:40:45,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:45,565 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:40:45,578 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/sv-benchmarks/c/recursive-simple/afterrec-2.c[318,331] [2021-11-09 10:40:45,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:40:45,592 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:40:45,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45 WrapperNode [2021-11-09 10:40:45,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:40:45,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:45,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:40:45,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:40:45,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:40:45,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:40:45,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:40:45,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:40:45,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:40:45,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:40:45,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:40:45,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:40:45,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (1/1) ... [2021-11-09 10:40:45,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:45,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:45,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:45,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 10:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-11-09 10:40:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-11-09 10:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:40:45,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:40:45,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:40:45,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:40:45,919 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 10:40:45,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:45 BoogieIcfgContainer [2021-11-09 10:40:45,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:40:45,922 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 10:40:45,922 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 10:40:45,928 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 10:40:45,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:45,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 10:40:45" (1/3) ... [2021-11-09 10:40:45,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50bc1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:40:45, skipping insertion in model container [2021-11-09 10:40:45,931 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:45,931 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:40:45" (2/3) ... [2021-11-09 10:40:45,931 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50bc1b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 10:40:45, skipping insertion in model container [2021-11-09 10:40:45,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 10:40:45,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:45" (3/3) ... [2021-11-09 10:40:45,933 INFO L389 chiAutomizerObserver]: Analyzing ICFG afterrec-2.c [2021-11-09 10:40:45,981 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 10:40:45,981 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 10:40:45,981 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 10:40:45,981 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 10:40:45,982 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 10:40:45,982 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 10:40:45,982 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 10:40:45,982 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 10:40:45,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-09 10:40:46,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 10:40:46,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:46,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:46,031 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:40:46,032 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:40:46,032 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 10:40:46,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-09 10:40:46,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 10:40:46,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 10:40:46,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 10:40:46,035 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-09 10:40:46,035 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 10:40:46,044 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11#L-1true havoc main_#res; 8#L13true call f(2);< 12#fENTRYtrue [2021-11-09 10:40:46,044 INFO L793 eck$LassoCheckResult]: Loop: 12#fENTRYtrue ~n := #in~n; 9#L6true assume !(~n < 3);#t~post7 := ~n;~n := #t~post7 - 1;havoc #t~post7; 13#L8true call f(~n);< 12#fENTRYtrue [2021-11-09 10:40:46,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash 38799, now seen corresponding path program 1 times [2021-11-09 10:40:46,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:46,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729281015] [2021-11-09 10:40:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:46,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:46,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:46,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash 29931, now seen corresponding path program 1 times [2021-11-09 10:40:46,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:46,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271454762] [2021-11-09 10:40:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:46,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:46,238 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:40:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:40:46,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:40:46,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1155861149, now seen corresponding path program 1 times [2021-11-09 10:40:46,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:40:46,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708701694] [2021-11-09 10:40:46,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:40:46,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:40:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:46,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:46,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:40:46,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708701694] [2021-11-09 10:40:46,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708701694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:40:46,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:40:46,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:40:46,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221808631] [2021-11-09 10:40:46,493 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:40:46,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:40:46,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:40:46,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:40:46,494 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 10:40:46,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:40:46,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:40:46,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2021-11-09 10:40:46,495 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:40:46,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:40:46,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,593 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:40:46,594 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 10:40:46,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:46,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:46,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:40:46,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:40:46,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 10:40:46,632 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 10:40:46,632 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~post7=0} Honda state: {f_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 10:40:46,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:46,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:46,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:46,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 10:40:46,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 10:40:46,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:40:46,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:46,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:46,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:46,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 10:40:46,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 10:40:46,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 10:40:46,781 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 10:40:46,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:46,788 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 10:40:46,788 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 10:40:46,788 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 10:40:46,788 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 10:40:46,789 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 10:40:46,789 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,789 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 10:40:46,789 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 10:40:46,789 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2021-11-09 10:40:46,789 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 10:40:46,789 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 10:40:46,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 10:40:46,856 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 10:40:46,861 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 10:40:46,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:46,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:46,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 10:40:46,875 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 [2021-11-09 10:40:46,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:40:46,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:40:46,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:40:46,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:40:46,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:40:46,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:40:46,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:40:46,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:40:46,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-09 10:40:46,989 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:46,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:47,005 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:47,024 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 [2021-11-09 10:40:47,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:40:47,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:40:47,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:40:47,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:40:47,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:40:47,036 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:40:47,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:40:47,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 10:40:47,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 10:40:47,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:47,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:47,084 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:47,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 10:40:47,085 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 [2021-11-09 10:40:47,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 10:40:47,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 10:40:47,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 10:40:47,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 10:40:47,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 10:40:47,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 10:40:47,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 10:40:47,104 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 10:40:47,108 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-09 10:40:47,108 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-09 10:40:47,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 10:40:47,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:40:47,115 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 10:40:47,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-09 10:40:47,137 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 10:40:47,138 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 10:40:47,138 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 10:40:47,139 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2021-11-09 10:40:47,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-09 10:40:47,161 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 10:40:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:40:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:47,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 10:40:47,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:40:47,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 10:40:47,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 10:40:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:40:47,357 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 10:40:47,359 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:47,460 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 39 transitions. Complement of second has 19 states. [2021-11-09 10:40:47,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-11-09 10:40:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:47,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2021-11-09 10:40:47,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-09 10:40:47,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:40:47,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-09 10:40:47,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:40:47,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-09 10:40:47,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 10:40:47,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 39 transitions. [2021-11-09 10:40:47,507 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:40:47,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2021-11-09 10:40:47,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 10:40:47,511 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 10:40:47,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 10:40:47,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:40:47,525 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:47,525 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:47,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:40:47,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:40:47,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:40:47,531 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 10:40:47,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:40:47,536 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-09 10:40:47,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:40:47,545 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-09 10:40:47,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-09 10:40:47,545 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:40:47,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 10:40:47,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 10:40:47,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 10:40:47,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 10:40:47,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 10:40:47,557 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:47,557 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:47,557 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 10:40:47,557 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 10:40:47,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 10:40:47,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 10:40:47,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 10:40:47,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 10:40:47 BoogieIcfgContainer [2021-11-09 10:40:47,562 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 10:40:47,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:40:47,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:40:47,563 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:40:47,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:40:45" (3/4) ... [2021-11-09 10:40:47,566 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 10:40:47,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:40:47,569 INFO L168 Benchmark]: Toolchain (without parser) took 2310.09 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 49.5 MB in the beginning and 81.8 MB in the end (delta: -32.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:47,569 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 65.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:47,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.27 ms. Allocated memory is still 90.2 MB. Free memory was 49.2 MB in the beginning and 66.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:47,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 64.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:47,572 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 ms. Allocated memory is still 90.2 MB. Free memory was 64.9 MB in the beginning and 64.1 MB in the end (delta: 857.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:47,574 INFO L168 Benchmark]: RCFGBuilder took 274.81 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 55.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 10:40:47,575 INFO L168 Benchmark]: BuchiAutomizer took 1640.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 82.5 MB in the end (delta: -27.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:47,575 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 81.8 MB in the end (delta: 702.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:40:47,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory is still 65.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.27 ms. Allocated memory is still 90.2 MB. Free memory was 49.2 MB in the beginning and 66.4 MB in the end (delta: -17.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.73 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 64.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.69 ms. Allocated memory is still 90.2 MB. Free memory was 64.9 MB in the beginning and 64.1 MB in the end (delta: 857.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 274.81 ms. Allocated memory is still 90.2 MB. Free memory was 64.1 MB in the beginning and 55.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1640.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.4 MB in the beginning and 82.5 MB in the end (delta: -27.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.77 ms. Allocated memory is still 109.1 MB. Free memory was 82.5 MB in the beginning and 81.8 MB in the end (delta: 702.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 10:40:47,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7d457484-f4dc-4bcd-925e-e09c3fdec350/bin/uautomizer-IVEQpCNsaX/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