./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN --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 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f --- 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-6b4ec56 [2022-11-20 11:12:54,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:12:54,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:12:54,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:12:54,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:12:54,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:12:54,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:12:54,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:12:54,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:12:54,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:12:54,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:12:54,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:12:54,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:12:54,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:12:54,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:12:54,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:12:54,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:12:54,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:12:54,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:12:54,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:12:54,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:12:54,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:12:54,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:12:54,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:12:54,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:12:54,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:12:54,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:12:54,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:12:54,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:12:54,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:12:54,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:12:54,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:12:54,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:12:54,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:12:54,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:12:54,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:12:54,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:12:54,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:12:54,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:12:54,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:12:54,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:12:54,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-20 11:12:54,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:12:54,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:12:54,808 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:12:54,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:12:54,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:12:54,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:12:54,810 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:12:54,811 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 11:12:54,811 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 11:12:54,811 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 11:12:54,811 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 11:12:54,812 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 11:12:54,812 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 11:12:54,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:12:54,813 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:12:54,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:12:54,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:12:54,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:12:54,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:12:54,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 11:12:54,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 11:12:54,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 11:12:54,815 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:12:54,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:12:54,815 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 11:12:54,816 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:12:54,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 11:12:54,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:12:54,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:12:54,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:12:54,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:12:54,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 11:12:54,819 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_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d9b45804bf1a403fd87b7e9f0e2fc3ea97d36c9de0ccb522dbdc14d8252502f [2022-11-20 11:12:55,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:12:55,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:12:55,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:12:55,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:12:55,160 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:12:55,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2022-11-20 11:12:58,739 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:12:58,983 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:12:58,983 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/sv-benchmarks/c/recursive-simple/sum_2x3-2.c [2022-11-20 11:12:58,991 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/data/8e8b545a1/1c9990c42ea14f288e2416b18c34761f/FLAG5cd2e811b [2022-11-20 11:12:59,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/data/8e8b545a1/1c9990c42ea14f288e2416b18c34761f [2022-11-20 11:12:59,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:12:59,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:12:59,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:12:59,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:12:59,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:12:59,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e05b16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59, skipping insertion in model container [2022-11-20 11:12:59,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:12:59,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:12:59,209 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/sv-benchmarks/c/recursive-simple/sum_2x3-2.c[479,492] [2022-11-20 11:12:59,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:12:59,226 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:12:59,248 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/sv-benchmarks/c/recursive-simple/sum_2x3-2.c[479,492] [2022-11-20 11:12:59,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:12:59,264 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:12:59,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59 WrapperNode [2022-11-20 11:12:59,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:12:59,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:12:59,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:12:59,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:12:59,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,301 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-20 11:12:59,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:12:59,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:12:59,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:12:59,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:12:59,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:12:59,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:12:59,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:12:59,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:12:59,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (1/1) ... [2022-11-20 11:12:59,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:12:59,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:12:59,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:12:59,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 11:12:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:12:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:12:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:12:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-11-20 11:12:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-11-20 11:12:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:12:59,509 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:12:59,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:12:59,625 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:12:59,632 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:12:59,633 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:12:59,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:59 BoogieIcfgContainer [2022-11-20 11:12:59,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:12:59,656 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 11:12:59,657 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 11:12:59,662 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 11:12:59,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:12:59,664 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 11:12:59" (1/3) ... [2022-11-20 11:12:59,665 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354c941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:12:59, skipping insertion in model container [2022-11-20 11:12:59,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:12:59,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:12:59" (2/3) ... [2022-11-20 11:12:59,666 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354c941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 11:12:59, skipping insertion in model container [2022-11-20 11:12:59,666 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 11:12:59,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:59" (3/3) ... [2022-11-20 11:12:59,668 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum_2x3-2.c [2022-11-20 11:12:59,766 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 11:12:59,766 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 11:12:59,766 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 11:12:59,766 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 11:12:59,766 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 11:12:59,767 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 11:12:59,767 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 11:12:59,767 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 11:12:59,776 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-20 11:12:59,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:12:59,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:12:59,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:12:59,814 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:12:59,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:12:59,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 11:12:59,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-20 11:12:59,817 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-20 11:12:59,817 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 11:12:59,818 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 11:12:59,818 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-20 11:12:59,818 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 11:12:59,828 INFO L748 eck$LassoCheckResult]: Stem: 5#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(12, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;main_~a~0#1 := 2;main_~b~0#1 := 3; 2#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 9#sumENTRYtrue [2022-11-20 11:12:59,829 INFO L750 eck$LassoCheckResult]: Loop: 9#sumENTRYtrue ~n := #in~n;~m := #in~m; 14#L6true assume !(~n <= 0); 13#L9true call #t~ret4 := sum(~n - 1, 1 + ~m);< 9#sumENTRYtrue [2022-11-20 11:12:59,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:59,835 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2022-11-20 11:12:59,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:59,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134085141] [2022-11-20 11:12:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:59,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:12:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:12:59,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:12:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:12:59,983 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:12:59,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:12:59,987 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2022-11-20 11:12:59,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:12:59,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158685133] [2022-11-20 11:12:59,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:12:59,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:00,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:13:00,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:13:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:13:00,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:13:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:00,013 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2022-11-20 11:13:00,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:13:00,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819401571] [2022-11-20 11:13:00,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:13:00,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:13:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:13:00,037 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:13:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:13:00,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:13:00,214 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:13:00,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:13:00,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:13:00,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:13:00,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 11:13:00,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:13:00,216 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:13:00,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-2.c_Iteration1_Loop [2022-11-20 11:13:00,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:13:00,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:13:00,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,270 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,292 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,451 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:13:00,452 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 11:13:00,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:13:00,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 11:13:00,505 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:13:00,505 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:13:00,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:00,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 11:13:00,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:13:00,532 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,563 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:13:00,563 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:13:00,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:00,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:13:00,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 11:13:00,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:13:00,625 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~n=0} Honda state: {sum_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:13:00,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:00,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,635 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:13:00,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 11:13:00,671 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 11:13:00,671 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 11:13:00,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:00,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,682 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 11:13:00,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 11:13:00,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-20 11:13:00,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:00,729 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:00,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 11:13:00,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 11:13:00,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 11:13:00,843 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-20 11:13:00,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:00,854 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 11:13:00,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 11:13:00,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 11:13:00,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 11:13:00,855 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 11:13:00,855 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:00,855 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 11:13:00,855 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 11:13:00,855 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_2x3-2.c_Iteration1_Loop [2022-11-20 11:13:00,856 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 11:13:00,856 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 11:13:00,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,869 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,887 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,906 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 11:13:00,986 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 11:13:00,991 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 11:13:01,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,003 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 11:13:01,007 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 [2022-11-20 11:13:01,021 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:13:01,021 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:13:01,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:13:01,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:13:01,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:13:01,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:13:01,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:13:01,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:13:01,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,056 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 [2022-11-20 11:13:01,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 11:13:01,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:13:01,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:13:01,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:13:01,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:13:01,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:13:01,073 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:13:01,073 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:13:01,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:13:01,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,100 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,117 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 [2022-11-20 11:13:01,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 11:13:01,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:13:01,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:13:01,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:13:01,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:13:01,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:13:01,137 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:13:01,137 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:13:01,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:13:01,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,171 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 11:13:01,176 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 [2022-11-20 11:13:01,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:13:01,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:13:01,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:13:01,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:13:01,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:13:01,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:13:01,197 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:13:01,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 11:13:01,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 11:13:01,236 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 [2022-11-20 11:13:01,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 11:13:01,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 11:13:01,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 11:13:01,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 11:13:01,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 11:13:01,257 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 11:13:01,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 11:13:01,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 11:13:01,273 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-20 11:13:01,273 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-20 11:13:01,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 11:13:01,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:13:01,298 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 11:13:01,308 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 11:13:01,308 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-20 11:13:01,308 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 11:13:01,309 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2022-11-20 11:13:01,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 11:13:01,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,327 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-20 11:13:01,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:13:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:01,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:13:01,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:13:01,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 11:13:01,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:13:01,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:13:01,567 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-20 11:13:01,570 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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) [2022-11-20 11:13:01,703 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 30 states and 35 transitions. Complement of second has 12 states. [2022-11-20 11:13:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-20 11:13:01,711 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) [2022-11-20 11:13:01,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-11-20 11:13:01,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-11-20 11:13:01,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:13:01,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-11-20 11:13:01,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:13:01,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-20 11:13:01,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 11:13:01,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-11-20 11:13:01,720 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:13:01,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2022-11-20 11:13:01,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 11:13:01,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 11:13:01,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 11:13:01,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:13:01,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:13:01,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:13:01,726 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 11:13:01,726 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 11:13:01,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 11:13:01,727 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 11:13:01,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 11:13:01,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 11:13:01 BoogieIcfgContainer [2022-11-20 11:13:01,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 11:13:01,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:13:01,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:13:01,737 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:13:01,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:12:59" (3/4) ... [2022-11-20 11:13:01,744 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:13:01,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:13:01,753 INFO L158 Benchmark]: Toolchain (without parser) took 2731.35ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 88.5MB in the beginning and 74.1MB in the end (delta: 14.5MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-11-20 11:13:01,753 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:13:01,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.43ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 78.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:13:01,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.43ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 77.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:13:01,758 INFO L158 Benchmark]: Boogie Preprocessor took 22.71ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 76.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:13:01,758 INFO L158 Benchmark]: RCFGBuilder took 310.21ms. Allocated memory is still 134.2MB. Free memory was 76.3MB in the beginning and 67.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:13:01,762 INFO L158 Benchmark]: BuchiAutomizer took 2080.10ms. Allocated memory is still 161.5MB. Free memory was 132.2MB in the beginning and 74.1MB in the end (delta: 58.1MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2022-11-20 11:13:01,763 INFO L158 Benchmark]: Witness Printer took 7.95ms. Allocated memory is still 161.5MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:13:01,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.43ms. Allocated memory is still 134.2MB. Free memory was 88.2MB in the beginning and 78.6MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.43ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 77.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.71ms. Allocated memory is still 134.2MB. Free memory was 77.3MB in the beginning and 76.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.21ms. Allocated memory is still 134.2MB. Free memory was 76.3MB in the beginning and 67.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2080.10ms. Allocated memory is still 161.5MB. Free memory was 132.2MB in the beginning and 74.1MB in the end (delta: 58.1MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Witness Printer took 7.95ms. Allocated memory is still 161.5MB. Free memory is still 74.1MB. 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 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 11:13:01,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 11:13:01,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b72f0ac-8946-45e2-8120-4cab1181e9f6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE