./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-02-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/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_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-02-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/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 64bit --witnessprinter.graph.data.programhash c6684a8ca2453ef662366f4da66fbb75d23a4edf014c7205fa9be4e6b0c90683 --- 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 12:00:07,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:00:07,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:00:07,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:00:07,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:00:07,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:00:07,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:00:07,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:00:07,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:00:07,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:00:07,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:00:07,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:00:07,913 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:00:07,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:00:07,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:00:07,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:00:07,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:00:07,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:00:07,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:00:07,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:00:07,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:00:07,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:00:07,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:00:07,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:00:07,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:00:07,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:00:07,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:00:07,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:00:07,944 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:00:07,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:00:07,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:00:07,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:00:07,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:00:07,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:00:07,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:00:07,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:00:07,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:00:07,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:00:07,955 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:00:07,956 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:00:07,957 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:00:07,959 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 12:00:07,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:00:07,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:00:07,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:00:07,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:00:07,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:00:07,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:00:07,994 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:00:07,995 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 12:00:07,995 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 12:00:07,996 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 12:00:07,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 12:00:07,997 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 12:00:07,997 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 12:00:07,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:00:07,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:00:07,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:00:07,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:00:08,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 12:00:08,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 12:00:08,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 12:00:08,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:00:08,002 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 12:00:08,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:00:08,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 12:00:08,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:00:08,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:00:08,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:00:08,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:00:08,006 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 12:00:08,006 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_999e1433-0c87-4fc0-8d38-df4e6a594bb5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6684a8ca2453ef662366f4da66fbb75d23a4edf014c7205fa9be4e6b0c90683 [2022-11-20 12:00:08,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:00:08,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:00:08,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:00:08,424 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:00:08,426 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:00:08,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-bwb/and-02-false.c [2022-11-20 12:00:12,169 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:00:12,379 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:00:12,380 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/sv-benchmarks/c/termination-bwb/and-02-false.c [2022-11-20 12:00:12,388 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/data/7de3213cc/0952cd6688af4c6280769e1e64a44a0b/FLAGc044622d0 [2022-11-20 12:00:12,406 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/data/7de3213cc/0952cd6688af4c6280769e1e64a44a0b [2022-11-20 12:00:12,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:00:12,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:00:12,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:00:12,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:00:12,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:00:12,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@336eaf0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12, skipping insertion in model container [2022-11-20 12:00:12,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:00:12,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:00:12,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:00:12,620 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:00:12,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:00:12,652 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:00:12,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12 WrapperNode [2022-11-20 12:00:12,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:00:12,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:00:12,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:00:12,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:00:12,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,692 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2022-11-20 12:00:12,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:00:12,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:00:12,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:00:12,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:00:12,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:00:12,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:00:12,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:00:12,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:00:12,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (1/1) ... [2022-11-20 12:00:12,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:12,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:12,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:12,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 12:00:12,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:00:12,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:00:12,905 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:00:12,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:00:13,037 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:00:13,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:00:13,046 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:00:13,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:13 BoogieIcfgContainer [2022-11-20 12:00:13,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:00:13,050 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 12:00:13,050 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 12:00:13,055 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 12:00:13,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:13,056 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 12:00:12" (1/3) ... [2022-11-20 12:00:13,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50a0d506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:00:13, skipping insertion in model container [2022-11-20 12:00:13,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:13,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:00:12" (2/3) ... [2022-11-20 12:00:13,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50a0d506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 12:00:13, skipping insertion in model container [2022-11-20 12:00:13,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 12:00:13,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:13" (3/3) ... [2022-11-20 12:00:13,061 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-02-false.c [2022-11-20 12:00:13,134 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 12:00:13,134 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 12:00:13,135 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 12:00:13,135 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 12:00:13,135 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 12:00:13,135 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 12:00:13,135 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 12:00:13,136 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 12:00:13,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:13,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:00:13,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:13,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:13,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:13,174 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:00:13,175 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 12:00:13,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:13,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:00:13,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:13,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:13,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:13,179 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 12:00:13,190 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 6#L18-2true [2022-11-20 12:00:13,192 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 == main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 4#L18true assume !(main_~x~0#1 >= 0);main_#t~post3#1 := main_~x~0#1;main_~x~0#1 := 1 + main_#t~post3#1;havoc main_#t~post3#1; 6#L18-2true [2022-11-20 12:00:13,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:13,208 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 12:00:13,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:13,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156793937] [2022-11-20 12:00:13,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:13,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,381 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:13,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:13,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2022-11-20 12:00:13,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:13,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232736518] [2022-11-20 12:00:13,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:13,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:00:13,518 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 12:00:13,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:00:13,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232736518] [2022-11-20 12:00:13,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232736518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:00:13,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:00:13,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:00:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034711014] [2022-11-20 12:00:13,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:00:13,554 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 12:00:13,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:00:13,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:00:13,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:00:13,632 INFO L87 Difference]: Start difference. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:13,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:00:13,705 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2022-11-20 12:00:13,707 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2022-11-20 12:00:13,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:00:13,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 9 transitions. [2022-11-20 12:00:13,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2022-11-20 12:00:13,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2022-11-20 12:00:13,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2022-11-20 12:00:13,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:00:13,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 12:00:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2022-11-20 12:00:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-20 12:00:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:00:13,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2022-11-20 12:00:13,776 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 12:00:13,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:00:13,796 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2022-11-20 12:00:13,796 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 12:00:13,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2022-11-20 12:00:13,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-20 12:00:13,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 12:00:13,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 12:00:13,798 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 12:00:13,798 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 12:00:13,798 INFO L748 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 36#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~post1#1, main_#t~nondet2#1, main_#t~post3#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~a~0#1 := 16; 37#L18-2 [2022-11-20 12:00:13,798 INFO L750 eck$LassoCheckResult]: Loop: 37#L18-2 assume !!(0 == main_~x~0#1);main_#t~post1#1 := main_~a~0#1;main_~a~0#1 := main_#t~post1#1 - 1;havoc main_#t~post1#1; 33#L18 assume main_~x~0#1 >= 0; 34#L19 assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~nondet2#1 := 0; 32#L19-4 main_~x~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 37#L18-2 [2022-11-20 12:00:13,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:13,799 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2022-11-20 12:00:13,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:13,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665262716] [2022-11-20 12:00:13,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:13,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,823 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:13,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1265229, now seen corresponding path program 1 times [2022-11-20 12:00:13,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:13,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609896043] [2022-11-20 12:00:13,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:13,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,852 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:13,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:00:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash 889692431, now seen corresponding path program 1 times [2022-11-20 12:00:13,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:00:13,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521623050] [2022-11-20 12:00:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:00:13,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:00:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:00:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:00:13,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:00:13,991 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:00:13,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:00:13,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:00:13,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:00:13,993 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:00:13,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:13,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:00:13,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:00:13,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02-false.c_Iteration2_Loop [2022-11-20 12:00:13,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:00:13,994 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:00:14,013 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 12:00:14,033 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 12:00:14,040 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 12:00:14,044 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 12:00:14,108 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:00:14,109 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:00:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 12:00:14,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,166 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 12:00:14,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,233 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:00:14,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 12:00:14,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2022-11-20 12:00:14,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 12:00:14,367 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,368 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,384 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 12:00:14,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-20 12:00:14,432 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 12:00:14,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 12:00:14,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 12:00:14,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 12:00:14,433 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-20 12:00:14,433 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,433 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 12:00:14,433 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 12:00:14,433 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-02-false.c_Iteration2_Lasso [2022-11-20 12:00:14,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 12:00:14,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 12:00:14,436 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 12:00:14,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 12:00:14,465 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 12:00:14,469 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 12:00:14,478 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 12:00:14,482 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 12:00:14,490 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 12:00:14,587 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 12:00:14,587 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-20 12:00:14,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 12:00:14,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,632 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 12:00:14,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-20 12:00:14,637 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,675 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,675 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=16} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0#1=-6}, {ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~a~0#1=6}] Lambdas: [1, 7, 1] Nus: [0, 1] [2022-11-20 12:00:14,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,681 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 12:00:14,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,701 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-20 12:00:14,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 12:00:14,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,728 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,728 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,734 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,751 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 12:00:14,774 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3#1=0} Honda state: {ULTIMATE.start_main_#t~post3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,781 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 12:00:14,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,803 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,803 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-11-20 12:00:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,810 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 12:00:14,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,828 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,829 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-20 12:00:14,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 12:00:14,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:00:14,840 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 12:00:14,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 12:00:14,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-20 12:00:14,853 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-20 12:00:14,883 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-20 12:00:14,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-20 12:00:14,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 12:00:14,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 12:00:14 BoogieIcfgContainer [2022-11-20 12:00:14,920 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 12:00:14,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:00:14,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:00:14,923 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:00:14,923 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:00:13" (3/4) ... [2022-11-20 12:00:14,927 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 12:00:14,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:00:14,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:00:14,980 INFO L158 Benchmark]: Toolchain (without parser) took 2568.80ms. Allocated memory is still 165.7MB. Free memory was 125.4MB in the beginning and 97.9MB in the end (delta: 27.6MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,981 INFO L158 Benchmark]: CDTParser took 1.13ms. Allocated memory is still 132.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:00:14,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.42ms. Allocated memory is still 165.7MB. Free memory was 125.4MB in the beginning and 116.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.32ms. Allocated memory is still 165.7MB. Free memory was 116.4MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,982 INFO L158 Benchmark]: Boogie Preprocessor took 25.54ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 113.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,983 INFO L158 Benchmark]: RCFGBuilder took 328.67ms. Allocated memory is still 165.7MB. Free memory was 113.8MB in the beginning and 105.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,983 INFO L158 Benchmark]: BuchiAutomizer took 1869.81ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 100.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,984 INFO L158 Benchmark]: Witness Printer took 58.11ms. Allocated memory is still 165.7MB. Free memory was 100.1MB in the beginning and 97.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:00:14,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.13ms. Allocated memory is still 132.1MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.42ms. Allocated memory is still 165.7MB. Free memory was 125.4MB in the beginning and 116.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.32ms. Allocated memory is still 165.7MB. Free memory was 116.4MB in the beginning and 115.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.54ms. Allocated memory is still 165.7MB. Free memory was 115.0MB in the beginning and 113.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.67ms. Allocated memory is still 165.7MB. Free memory was 113.8MB in the beginning and 105.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1869.81ms. Allocated memory is still 165.7MB. Free memory was 105.0MB in the beginning and 100.1MB in the end (delta: 4.9MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Witness Printer took 58.11ms. Allocated memory is still 165.7MB. Free memory was 100.1MB in the beginning and 97.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq212 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 16]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@79dde7c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2a162607=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68a68413=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@54451944=0} State at position 1 is {x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@79dde7c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2a162607=0, a=16, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68a68413=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@54451944=0} For i>1, the state at position i is {x=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@79dde7c9=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@2a162607=0 + sum_{k=0}^i 0, a=16 + sum_{k=0}^i -6 + -1*7^k + 6 + 6*k*7^(k-1), \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68a68413=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@54451944=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 7, 1] Mus: [0, 1] - NonterminatingLassoResult [Line: 16]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int a; [L13] int x; [L14] x = __VERIFIER_nondet_int() [L15] a = 16 Loop: [L16] COND TRUE x==0 [L17] a-- [L18] COND TRUE x >= 0 [L19] x = x&a End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 12:00:15,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999e1433-0c87-4fc0-8d38-df4e6a594bb5/bin/uautomizer-ug76WZFUDN/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)