./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y --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 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:45:02,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:45:02,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:45:02,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:45:02,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:45:02,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:45:02,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:45:02,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:45:02,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:45:02,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:45:02,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:45:02,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:45:02,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:45:02,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:45:02,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:45:02,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:45:02,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:45:02,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:45:02,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:45:02,979 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:45:02,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:45:02,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:45:02,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:45:02,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:45:02,995 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:45:02,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:45:02,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:45:02,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:45:02,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:45:02,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:45:03,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:45:03,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:45:03,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:45:03,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:45:03,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:45:03,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:45:03,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:45:03,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:45:03,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:45:03,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:45:03,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:45:03,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-13 18:45:03,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:45:03,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:45:03,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:45:03,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:45:03,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:45:03,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:45:03,046 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:45:03,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:45:03,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:45:03,047 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:45:03,047 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:45:03,047 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:45:03,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:45:03,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:45:03,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:45:03,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:45:03,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:45:03,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:45:03,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:45:03,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:45:03,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:45:03,050 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:45:03,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:45:03,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:45:03,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:45:03,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:45:03,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:45:03,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:45:03,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:45:03,052 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:45:03,052 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_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c [2021-11-13 18:45:03,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:45:03,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:45:03,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:45:03,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:45:03,368 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:45:03,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-11-13 18:45:03,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/data/46231057e/247fca5131c14388bcdd1e94c151e1fb/FLAG2bee2e869 [2021-11-13 18:45:03,881 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:45:03,882 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2021-11-13 18:45:03,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/data/46231057e/247fca5131c14388bcdd1e94c151e1fb/FLAG2bee2e869 [2021-11-13 18:45:04,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/data/46231057e/247fca5131c14388bcdd1e94c151e1fb [2021-11-13 18:45:04,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:45:04,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:45:04,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:04,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:45:04,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:45:04,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0faf22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04, skipping insertion in model container [2021-11-13 18:45:04,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:45:04,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:45:04,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:04,520 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:45:04,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:45:04,559 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:45:04,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04 WrapperNode [2021-11-13 18:45:04,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:45:04,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:04,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:45:04,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:45:04,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:45:04,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:45:04,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:45:04,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:45:04,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:45:04,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:45:04,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:45:04,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:45:04,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (1/1) ... [2021-11-13 18:45:04,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:04,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:04,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:04,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:45:04,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:45:04,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:45:04,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:45:04,909 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 18:45:04,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:04 BoogieIcfgContainer [2021-11-13 18:45:04,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:45:04,917 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:45:04,917 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:45:04,921 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:45:04,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:45:04,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:45:04" (1/3) ... [2021-11-13 18:45:04,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b36372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:45:04, skipping insertion in model container [2021-11-13 18:45:04,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:45:04,925 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:45:04" (2/3) ... [2021-11-13 18:45:04,926 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@75b36372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:45:04, skipping insertion in model container [2021-11-13 18:45:04,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:45:04,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:04" (3/3) ... [2021-11-13 18:45:04,927 INFO L388 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2021-11-13 18:45:05,011 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:45:05,011 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:45:05,012 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:45:05,012 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:45:05,012 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:45:05,012 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:45:05,012 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:45:05,012 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:45:05,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2021-11-13 18:45:05,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-13 18:45:05,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:45:05,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:45:05,065 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-13 18:45:05,065 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-13 18:45:05,065 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:45:05,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2021-11-13 18:45:05,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-13 18:45:05,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:45:05,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:45:05,069 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-13 18:45:05,069 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-13 18:45:05,076 INFO L791 eck$LassoCheckResult]: Stem: 6#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~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~d1~0#1, main_~d2~0#1, main_~d1old~0#1;havoc main_~x~0#1;havoc main_~d1~0#1;havoc main_~d2~0#1;havoc main_~d1old~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~d1~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d2~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 4#L18true assume !!(-1048575 <= main_~x~0#1 && main_~x~0#1 <= 1048575); 10#L19true assume !!(-1048575 <= main_~d1~0#1 && main_~d1~0#1 <= 1048575); 11#L20true assume !!(-1048575 <= main_~d2~0#1 && main_~d2~0#1 <= 1048575); 8#L21-2true [2021-11-13 18:45:05,077 INFO L793 eck$LassoCheckResult]: Loop: 8#L21-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~d1~0#1;main_~d1old~0#1 := main_~d1~0#1;main_~d1~0#1 := 1 + main_~d2~0#1;main_~d2~0#1 := 1 + main_~d1old~0#1; 8#L21-2true [2021-11-13 18:45:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:05,088 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-11-13 18:45:05,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:05,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122233103] [2021-11-13 18:45:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:05,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,184 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:45:05,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,215 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:45:05,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:05,230 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2021-11-13 18:45:05,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:05,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097449356] [2021-11-13 18:45:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:05,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,244 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:45:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,261 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:45:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:05,263 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2021-11-13 18:45:05,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:45:05,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260411630] [2021-11-13 18:45:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:45:05,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:45:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:45:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:45:05,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:45:05,416 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:45:05,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:45:05,417 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:45:05,417 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:45:05,417 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-13 18:45:05,417 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:05,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:45:05,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:45:05,418 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-11-13 18:45:05,418 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:45:05,418 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:45:05,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:05,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:05,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:05,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:45:05,609 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-13 18:45:05,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:05,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:05,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:05,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-13 18:45:05,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 18:45:05,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:45:05,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 18:45:05,650 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 18:45:05,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:05,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:05,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:05,704 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 18:45:05,704 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:45:05,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-13 18:45:05,727 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-13 18:45:05,727 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-13 18:45:05,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-11-13 18:45:05,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:05,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:05,761 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:05,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-13 18:45:05,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-13 18:45:05,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:45:05,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:05,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:05,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:05,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:05,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-13 18:45:05,855 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-13 18:45:05,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-13 18:45:10,081 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-13 18:45:10,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,084 INFO L210 LassoAnalysis]: Preferences: [2021-11-13 18:45:10,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-13 18:45:10,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-13 18:45:10,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-13 18:45:10,085 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-13 18:45:10,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-13 18:45:10,085 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-13 18:45:10,085 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2021-11-13 18:45:10,085 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-13 18:45:10,085 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-13 18:45:10,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:10,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:10,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-13 18:45:10,173 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-13 18:45:10,178 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-13 18:45:10,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,180 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-13 18:45:10,190 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 [2021-11-13 18:45:10,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:45:10,207 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:45:10,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:45:10,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,262 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-13 18:45:10,268 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 [2021-11-13 18:45:10,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:45:10,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-13 18:45:10,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-13 18:45:10,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-13 18:45:10,343 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 [2021-11-13 18:45:10,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:45:10,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-13 18:45:10,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-13 18:45:10,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:45:10,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,403 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-13 18:45:10,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,415 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 [2021-11-13 18:45:10,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,425 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-13 18:45:10,429 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-13 18:45:10,429 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-13 18:45:10,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-13 18:45:10,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,487 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-13 18:45:10,492 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 [2021-11-13 18:45:10,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,499 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-13 18:45:10,504 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-13 18:45:10,504 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-13 18:45:10,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,560 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-13 18:45:10,563 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 [2021-11-13 18:45:10,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:45:10,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,571 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-13 18:45:10,575 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-13 18:45:10,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:45:10,602 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,640 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-11-13 18:45:10,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,642 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-13 18:45:10,659 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 [2021-11-13 18:45:10,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,669 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-13 18:45:10,674 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-11-13 18:45:10,674 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-13 18:45:10,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,724 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-13 18:45:10,725 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 [2021-11-13 18:45:10,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,733 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-13 18:45:10,740 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-11-13 18:45:10,740 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-11-13 18:45:10,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-13 18:45:10,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,808 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-13 18:45:10,811 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 [2021-11-13 18:45:10,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-13 18:45:10,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-13 18:45:10,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-13 18:45:10,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-13 18:45:10,820 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-11-13 18:45:10,824 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-13 18:45:10,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-13 18:45:10,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-13 18:45:10,892 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-13 18:45:10,892 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-13 18:45:10,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:45:10,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:45:10,896 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:45:10,920 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-13 18:45:10,920 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-13 18:45:10,920 INFO L513 LassoAnalysis]: Proved termination. [2021-11-13 18:45:10,921 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0#1 - 1*ULTIMATE.start_main_~d2~0#1 f1 = -1*ULTIMATE.start_main_~d1~0#1 + 2*ULTIMATE.start_main_~x~0#1 + 1 f2 = 1*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-11-13 18:45:10,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-13 18:45:10,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:10,963 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-13 18:45:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:45:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:11,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 18:45:11,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:11,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-13 18:45:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:45:11,089 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 18:45:11,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:45:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:45:11,119 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-13 18:45:11,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-13 18:45:11,169 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 22 states and 27 transitions. Complement of second has 5 states. [2021-11-13 18:45:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-13 18:45:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2021-11-13 18:45:11,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2021-11-13 18:45:11,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2021-11-13 18:45:11,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:45:11,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2021-11-13 18:45:11,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:45:11,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-13 18:45:11,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-13 18:45:11,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2021-11-13 18:45:11,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:45:11,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2021-11-13 18:45:11,193 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-13 18:45:11,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-13 18:45:11,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-13 18:45:11,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:45:11,194 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:45:11,194 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:45:11,194 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 18:45:11,194 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:45:11,194 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-13 18:45:11,194 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-13 18:45:11,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-13 18:45:11,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:45:11 BoogieIcfgContainer [2021-11-13 18:45:11,203 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:45:11,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:45:11,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:45:11,205 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:45:11,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:45:04" (3/4) ... [2021-11-13 18:45:11,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 18:45:11,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:45:11,215 INFO L158 Benchmark]: Toolchain (without parser) took 6933.81ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 48.3MB in the beginning and 76.0MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:11,216 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:11,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.41ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 48.1MB in the beginning and 86.8MB in the end (delta: -38.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-13 18:45:11,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.13ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 85.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:11,218 INFO L158 Benchmark]: Boogie Preprocessor took 25.56ms. Allocated memory is still 109.1MB. Free memory was 85.4MB in the beginning and 84.5MB in the end (delta: 962.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:45:11,222 INFO L158 Benchmark]: RCFGBuilder took 291.94ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 76.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:45:11,222 INFO L158 Benchmark]: BuchiAutomizer took 6286.61ms. Allocated memory is still 109.1MB. Free memory was 76.3MB in the beginning and 76.4MB in the end (delta: -161.6kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-11-13 18:45:11,223 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 76.0MB in the end (delta: 487.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:45:11,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.41ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 48.1MB in the beginning and 86.8MB in the end (delta: -38.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.13ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 85.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.56ms. Allocated memory is still 109.1MB. Free memory was 85.4MB in the beginning and 84.5MB in the end (delta: 962.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.94ms. Allocated memory is still 109.1MB. Free memory was 84.5MB in the beginning and 76.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6286.61ms. Allocated memory is still 109.1MB. Free memory was 76.3MB in the beginning and 76.4MB in the end (delta: -161.6kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 109.1MB. Free memory was 76.4MB in the beginning and 76.0MB in the end (delta: 487.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 10.52ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 8.27ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 3 mSolverCounterSat, 0.86ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 53ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-13 18:45:11,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98b8e278-4035-4bdf-a67e-cef875a19ce1/bin/uautomizer-YU5uOKAj3y/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