./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/sum01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/sum01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU --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 b8288a9de178793ff8226fcaf13a19528a323382cd8b50b54e8a1ad5ce998241 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:36:46,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:36:46,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:36:46,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:36:46,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:36:46,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:36:46,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:36:46,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:36:46,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:36:46,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:36:46,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:36:46,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:36:46,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:36:46,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:36:46,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:36:46,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:36:46,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:36:46,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:36:46,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:36:46,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:36:46,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:36:46,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:36:46,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:36:46,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:36:46,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:36:46,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:36:46,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:36:46,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:36:46,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:36:46,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:36:46,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:36:46,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:36:46,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:36:46,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:36:46,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:36:46,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:36:46,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:36:46,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:36:46,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:36:46,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:36:46,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:36:46,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:36:46,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:36:46,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:36:46,879 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:36:46,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:36:46,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:36:46,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:36:46,881 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:36:46,882 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:36:46,882 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:36:46,882 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:36:46,884 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:36:46,884 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:36:46,884 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:36:46,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:36:46,885 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:36:46,885 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:36:46,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:36:46,886 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:36:46,886 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:36:46,886 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:36:46,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:36:46,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:36:46,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:36:46,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:36:46,888 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:36:46,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:36:46,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:36:46,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:36:46,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:36:46,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:36:46,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:36:46,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:36:46,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:36:46,895 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_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8288a9de178793ff8226fcaf13a19528a323382cd8b50b54e8a1ad5ce998241 [2021-11-02 22:36:47,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:36:47,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:36:47,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:36:47,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:36:47,397 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:36:47,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/loops/sum01-1.i [2021-11-02 22:36:47,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/data/72dce6910/a4c2227d9dbb4479b6ec6a4597875d80/FLAG32934becc [2021-11-02 22:36:48,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:36:48,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/sv-benchmarks/c/loops/sum01-1.i [2021-11-02 22:36:48,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/data/72dce6910/a4c2227d9dbb4479b6ec6a4597875d80/FLAG32934becc [2021-11-02 22:36:48,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/data/72dce6910/a4c2227d9dbb4479b6ec6a4597875d80 [2021-11-02 22:36:48,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:36:48,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:36:48,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:36:48,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:36:48,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:36:48,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278cdf0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48, skipping insertion in model container [2021-11-02 22:36:48,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:36:48,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:36:48,702 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_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/sv-benchmarks/c/loops/sum01-1.i[808,821] [2021-11-02 22:36:48,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:36:48,733 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:36:48,748 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_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/sv-benchmarks/c/loops/sum01-1.i[808,821] [2021-11-02 22:36:48,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:36:48,773 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:36:48,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48 WrapperNode [2021-11-02 22:36:48,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:36:48,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:36:48,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:36:48,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:36:48,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:36:48,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:36:48,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:36:48,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:36:48,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:36:48,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:36:48,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:36:48,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:36:48,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (1/1) ... [2021-11-02 22:36:48,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:48,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:48,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:48,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:36:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:36:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:36:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:36:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:36:49,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:36:49,209 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-02 22:36:49,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:36:49 BoogieIcfgContainer [2021-11-02 22:36:49,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:36:49,214 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:36:49,214 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:36:49,218 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:36:49,219 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:36:49,219 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:36:48" (1/3) ... [2021-11-02 22:36:49,221 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ca07c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:36:49, skipping insertion in model container [2021-11-02 22:36:49,222 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:36:49,222 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:36:48" (2/3) ... [2021-11-02 22:36:49,223 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ca07c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:36:49, skipping insertion in model container [2021-11-02 22:36:49,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:36:49,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:36:49" (3/3) ... [2021-11-02 22:36:49,225 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum01-1.i [2021-11-02 22:36:49,282 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:36:49,283 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:36:49,283 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:36:49,283 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:36:49,283 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:36:49,284 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:36:49,284 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:36:49,284 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:36:49,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:49,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:36:49,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:36:49,335 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:36:49,343 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:36:49,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:36:49,358 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:36:49,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:49,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:36:49,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:36:49,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:36:49,362 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 22:36:49,363 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:36:49,371 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 10#L24-3true [2021-11-02 22:36:49,384 INFO L793 eck$LassoCheckResult]: Loop: 10#L24-3true assume !!(main_~i~0 <= main_~n~0); 7#L25true assume main_~i~0 < 10;main_~sn~0 := 2 + main_~sn~0; 6#L24-2true main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L24-3true [2021-11-02 22:36:49,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 22:36:49,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:49,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585885807] [2021-11-02 22:36:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:49,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,550 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:36:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:36:49,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:49,619 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-11-02 22:36:49,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:49,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121928073] [2021-11-02 22:36:49,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:49,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:36:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:36:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:49,670 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-11-02 22:36:49,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:49,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757748962] [2021-11-02 22:36:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:49,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,732 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:36:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:49,783 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:36:49,913 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:36:49,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:36:49,914 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:36:49,914 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:36:49,914 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:36:49,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:49,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:36:49,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:36:49,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2021-11-02 22:36:49,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:36:49,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:36:49,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:49,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:49,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:50,016 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:36:50,017 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:36:50,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,026 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 22:36:50,030 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:36:50,030 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:50,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:50,090 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 22:36:50,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:36:50,094 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:50,142 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:36:50,142 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=-1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=0}] Lambdas: [4, 1, 0] Nus: [1, 1] [2021-11-02 22:36:50,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-02 22:36:50,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,174 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 22:36:50,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:36:50,186 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:50,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-02 22:36:50,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,229 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:36:50,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:50,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 22:36:50,309 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:36:50,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-02 22:36:50,317 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:36:50,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:36:50,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:36:50,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:36:50,320 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:36:50,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:36:50,320 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:36:50,320 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration1_Loop [2021-11-02 22:36:50,320 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:36:50,320 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:36:50,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:50,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:50,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:50,384 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:36:50,430 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:36:50,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,465 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 22:36:50,488 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 [2021-11-02 22:36:50,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:36:50,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:36:50,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:36:50,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:36:50,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:36:50,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:36:50,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:36:50,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:36:50,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:50,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,598 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,607 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 [2021-11-02 22:36:50,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:36:50,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:36:50,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:36:50,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:36:50,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:36:50,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:36:50,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:36:50,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 22:36:50,658 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:36:50,663 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 22:36:50,663 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 22:36:50,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:50,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:50,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:50,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-02 22:36:50,725 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:36:50,725 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:36:50,726 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:36:50,726 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2021-11-02 22:36:50,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:50,806 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:36:50,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:36:50,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:36:50,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:36:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:36:50,876 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:36:50,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:36:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:36:50,935 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:36:50,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,000 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 44 transitions. Complement of second has 7 states. [2021-11-02 22:36:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-02 22:36:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-11-02 22:36:51,005 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-02 22:36:51,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-02 22:36:51,007 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,008 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-02 22:36:51,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 44 transitions. [2021-11-02 22:36:51,013 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:36:51,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2021-11-02 22:36:51,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-11-02 22:36:51,020 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-11-02 22:36:51,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-11-02 22:36:51,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-02 22:36:51,021 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-11-02 22:36:51,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-11-02 22:36:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-11-02 22:36:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-11-02 22:36:51,053 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-02 22:36:51,054 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-11-02 22:36:51,054 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:36:51,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-11-02 22:36:51,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 22:36:51,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:36:51,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:36:51,056 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-02 22:36:51,056 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 22:36:51,056 INFO L791 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(10); 86#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~i~0, main_~n~0, main_~sn~0;havoc main_~i~0;main_~n~0 := (if main_#t~nondet3 % 4294967296 % 4294967296 <= 2147483647 then main_#t~nondet3 % 4294967296 % 4294967296 else main_#t~nondet3 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~nondet3;main_~sn~0 := 0;main_~i~0 := 1; 95#L24-3 assume !!(main_~i~0 <= main_~n~0); 91#L25 [2021-11-02 22:36:51,056 INFO L793 eck$LassoCheckResult]: Loop: 91#L25 assume !(main_~i~0 < 10); 87#L24-2 main_#t~post4 := main_~i~0;main_~i~0 := 1 + main_#t~post4;havoc main_#t~post4; 88#L24-3 assume !!(main_~i~0 <= main_~n~0); 91#L25 [2021-11-02 22:36:51,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:51,057 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-11-02 22:36:51,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:51,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376819800] [2021-11-02 22:36:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:51,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:51,088 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:36:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:51,136 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:36:51,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:51,137 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-11-02 22:36:51,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:51,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906071945] [2021-11-02 22:36:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:51,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:51,158 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:36:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:36:51,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:36:51,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:51,165 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-11-02 22:36:51,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:36:51,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460100220] [2021-11-02 22:36:51,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:36:51,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:36:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:36:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:36:51,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:36:51,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460100220] [2021-11-02 22:36:51,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460100220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:36:51,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:36:51,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:36:51,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558946851] [2021-11-02 22:36:51,279 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:36:51,280 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:36:51,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:36:51,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:36:51,280 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 22:36:51,280 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,281 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:36:51,281 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:36:51,281 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2021-11-02 22:36:51,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:36:51,281 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:36:51,283 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:51,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:51,323 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:36:51,324 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 22:36:51,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-02 22:36:51,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:36:51,342 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:51,366 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 22:36:51,367 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 22:36:51,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:51,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,406 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-02 22:36:51,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 22:36:51,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:51,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:51,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,448 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-02 22:36:51,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 22:36:51,453 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 22:36:51,547 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 22:36:51,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:51,555 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 22:36:51,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 22:36:51,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 22:36:51,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 22:36:51,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 22:36:51,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 22:36:51,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 22:36:51,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum01-1.i_Iteration2_Loop [2021-11-02 22:36:51,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 22:36:51,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 22:36:51,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:51,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 22:36:51,623 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 22:36:51,623 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 22:36:51,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,628 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,655 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 [2021-11-02 22:36:51,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:36:51,666 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:36:51,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:36:51,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:36:51,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:36:51,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-02 22:36:51,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:36:51,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:36:51,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 22:36:51,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:51,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,699 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-02 22:36:51,702 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 [2021-11-02 22:36:51,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 22:36:51,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 22:36:51,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 22:36:51,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 22:36:51,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 22:36:51,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 22:36:51,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 22:36:51,738 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 22:36:51,745 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 22:36:51,745 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 22:36:51,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:36:51,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:36:51,750 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:36:51,752 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 22:36:51,752 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 22:36:51,753 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 22:36:51,753 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-11-02 22:36:51,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-02 22:36:51,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:51,797 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 22:36:51,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:36:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:36:51,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 22:36:51,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:36:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:36:51,854 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:36:51,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:36:51,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:36:51,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-02 22:36:51,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,965 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 6 states. [2021-11-02 22:36:51,965 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 [2021-11-02 22:36:51,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-11-02 22:36:51,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-11-02 22:36:51,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-11-02 22:36:51,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-11-02 22:36:51,971 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 22:36:51,972 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-11-02 22:36:51,978 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:36:51,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-11-02 22:36:51,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:36:51,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:36:51,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:36:51,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:36:51,980 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:36:51,982 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:36:51,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:36:51,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:36:51,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:36:51,989 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:36:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:36:51,994 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-02 22:36:51,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:36:51,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-02 22:36:51,994 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:36:52,003 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-02 22:36:52,004 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 22:36:52,004 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 22:36:52,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 22:36:52,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:36:52,004 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:36:52,005 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:36:52,005 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 22:36:52,005 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-02 22:36:52,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 22:36:52,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 22:36:52,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 22:36:52,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:36:52 BoogieIcfgContainer [2021-11-02 22:36:52,011 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:36:52,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:36:52,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:36:52,012 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:36:52,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:36:49" (3/4) ... [2021-11-02 22:36:52,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 22:36:52,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:36:52,019 INFO L168 Benchmark]: Toolchain (without parser) took 3634.59 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.4 MB in the beginning and 48.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:36:52,020 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 67.8 MB in the beginning and 67.7 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:36:52,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.47 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 87.3 MB in the end (delta: -36.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 22:36:52,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.61 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:36:52,023 INFO L168 Benchmark]: Boogie Preprocessor took 49.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 85.0 MB in the end (delta: 982.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:36:52,024 INFO L168 Benchmark]: RCFGBuilder took 338.47 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 75.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:36:52,024 INFO L168 Benchmark]: BuchiAutomizer took 2797.85 ms. Allocated memory is still 111.1 MB. Free memory was 75.8 MB in the beginning and 48.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:36:52,025 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 111.1 MB. Free memory was 48.9 MB in the beginning and 48.4 MB in the end (delta: 491.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:36:52,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 88.1 MB. Free memory was 67.8 MB in the beginning and 67.7 MB in the end (delta: 60.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.47 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 51.2 MB in the beginning and 87.3 MB in the end (delta: -36.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.61 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 85.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.14 ms. Allocated memory is still 111.1 MB. Free memory was 85.9 MB in the beginning and 85.0 MB in the end (delta: 982.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 338.47 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 75.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2797.85 ms. Allocated memory is still 111.1 MB. Free memory was 75.8 MB in the beginning and 48.9 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.95 ms. Allocated memory is still 111.1 MB. Free memory was 48.9 MB in the beginning and 48.4 MB in the end (delta: 491.1 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 19 + -2 * i and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 10 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp86 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 103ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 22:36:52,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:52,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:36:52,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8b9f9c-2e17-4ce6-be2e-78c41d777a69/bin/uautomizer-tBqnrhUYjU/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