./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro --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 --- [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-8393723 [2022-11-18 20:30:43,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:30:43,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:30:43,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:30:43,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:30:43,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:30:43,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:30:43,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:30:43,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:30:43,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:30:43,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:30:43,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:30:43,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:30:43,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:30:43,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:30:43,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:30:43,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:30:43,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:30:43,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:30:43,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:30:43,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:30:43,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:30:43,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:30:43,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:30:43,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:30:43,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:30:43,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:30:43,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:30:43,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:30:43,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:30:43,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:30:43,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:30:43,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:30:43,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:30:43,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:30:43,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:30:43,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:30:43,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:30:43,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:30:43,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:30:43,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:30:43,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-18 20:30:43,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:30:43,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:30:43,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:30:43,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:30:43,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:30:43,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:30:43,876 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:30:43,876 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:30:43,876 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:30:43,876 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:30:43,877 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:30:43,877 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:30:43,877 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:30:43,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:30:43,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:30:43,878 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:30:43,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:30:43,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:30:43,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:30:43,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:30:43,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:30:43,879 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:30:43,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:30:43,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:30:43,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:30:43,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:30:43,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:30:43,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:30:43,881 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:30:43,882 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_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f97933f35fe6dc06fe68cfca662228239a8205559235f014a4e90d641a78f3c [2022-11-18 20:30:44,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:30:44,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:30:44,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:30:44,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:30:44,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:30:44,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2022-11-18 20:30:44,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/data/932d90a11/c6eb5f7931bb4fda9bd151d4ade39ee5/FLAGd247151c7 [2022-11-18 20:30:44,902 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:30:44,903 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2022-11-18 20:30:44,910 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/data/932d90a11/c6eb5f7931bb4fda9bd151d4ade39ee5/FLAGd247151c7 [2022-11-18 20:30:45,255 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/data/932d90a11/c6eb5f7931bb4fda9bd151d4ade39ee5 [2022-11-18 20:30:45,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:30:45,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:30:45,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:45,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:30:45,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:30:45,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfdee07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45, skipping insertion in model container [2022-11-18 20:30:45,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:30:45,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:30:45,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:45,530 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:30:45,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:30:45,570 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:30:45,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45 WrapperNode [2022-11-18 20:30:45,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:30:45,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:45,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:30:45,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:30:45,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,610 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-11-18 20:30:45,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:30:45,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:30:45,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:30:45,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:30:45,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:30:45,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:30:45,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:30:45,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:30:45,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (1/1) ... [2022-11-18 20:30:45,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:45,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:45,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:45,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:30:45,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:30:45,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:30:45,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:30:45,832 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:30:45,982 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:30:45,989 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:30:45,990 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:30:45,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:45 BoogieIcfgContainer [2022-11-18 20:30:45,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:30:45,993 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:30:45,993 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:30:46,000 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:30:46,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:46,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:30:45" (1/3) ... [2022-11-18 20:30:46,003 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a8a755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:30:46, skipping insertion in model container [2022-11-18 20:30:46,003 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:46,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:30:45" (2/3) ... [2022-11-18 20:30:46,004 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@63a8a755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:30:46, skipping insertion in model container [2022-11-18 20:30:46,004 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:30:46,004 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:45" (3/3) ... [2022-11-18 20:30:46,006 INFO L332 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2022-11-18 20:30:46,103 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:30:46,103 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:30:46,104 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:30:46,104 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:30:46,104 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:30:46,104 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:30:46,104 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:30:46,105 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:30:46,110 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) [2022-11-18 20:30:46,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-18 20:30:46,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:46,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:46,147 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:30:46,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 20:30:46,148 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:30:46,148 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) [2022-11-18 20:30:46,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-18 20:30:46,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:30:46,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:30:46,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-11-18 20:30:46,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-18 20:30:46,163 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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; 3#L18true assume !!(-1048575 <= main_~x~0#1 && main_~x~0#1 <= 1048575); 9#L19true assume !!(-1048575 <= main_~d1~0#1 && main_~d1~0#1 <= 1048575); 10#L20true assume !!(-1048575 <= main_~d2~0#1 && main_~d2~0#1 <= 1048575); 7#L21-2true [2022-11-18 20:30:46,164 INFO L750 eck$LassoCheckResult]: Loop: 7#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; 7#L21-2true [2022-11-18 20:30:46,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:46,171 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2022-11-18 20:30:46,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:46,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032573377] [2022-11-18 20:30:46,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:46,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:46,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:46,353 INFO L85 PathProgramCache]: Analyzing trace with hash 57, now seen corresponding path program 1 times [2022-11-18 20:30:46,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:46,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798017425] [2022-11-18 20:30:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:46,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:46,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:46,408 INFO L85 PathProgramCache]: Analyzing trace with hash 889571345, now seen corresponding path program 1 times [2022-11-18 20:30:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:46,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043812603] [2022-11-18 20:30:46,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:46,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:30:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:30:46,445 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:30:46,601 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:30:46,606 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:30:46,606 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:30:46,607 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:30:46,607 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:30:46,607 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:46,607 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:30:46,607 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:30:46,608 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2022-11-18 20:30:46,608 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:30:46,608 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:30:46,633 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:46,648 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:46,653 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:46,794 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:30:46,795 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:30:46,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:46,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:46,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:46,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:30:46,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:30:46,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:30:46,842 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:30:46,854 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: [] [2022-11-18 20:30:46,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:46,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:46,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:46,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:46,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:30:46,898 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:30:46,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:30:46,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 20:30:46,931 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: [] [2022-11-18 20:30:46,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:46,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:46,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:46,943 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:46,955 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:30:46,955 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:30:46,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:30:47,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:47,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:47,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:47,003 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:47,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:30:47,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:30:47,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:30:51,680 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:30:51,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:51,686 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:30:51,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:30:51,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:30:51,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:30:51,687 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:30:51,687 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:51,687 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:30:51,687 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:30:51,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2022-11-18 20:30:51,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:30:51,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:30:51,690 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:51,694 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:51,698 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:30:51,785 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:30:51,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:30:51,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:51,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:51,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:51,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:51,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 20:30:51,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:51,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:51,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:51,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:51,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:51,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:51,847 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:51,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:51,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:51,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:51,862 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:51,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 20:30:51,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:51,880 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:51,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:51,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:51,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:51,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 20:30:51,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 20:30:51,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:51,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:51,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:51,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:51,905 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:51,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 20:30:51,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:51,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:51,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:51,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:51,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:51,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:30:51,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:30:51,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:51,954 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:51,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:51,963 INFO L490 LassoAnalysis]: Using template '2-nested'. [2022-11-18 20:30:51,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:51,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:51,965 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:51,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:51,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 20:30:51,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:51,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:51,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:51,988 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 20:30:51,998 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-11-18 20:30:51,999 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-11-18 20:30:52,020 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:52,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,029 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 20:30:52,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:52,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:52,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:52,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:52,049 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 20:30:52,053 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2022-11-18 20:30:52,053 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2022-11-18 20:30:52,066 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:52,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,072 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 20:30:52,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:52,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:52,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:52,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:52,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:52,091 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2022-11-18 20:30:52,105 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2022-11-18 20:30:52,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:52,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:52,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,143 INFO L490 LassoAnalysis]: Using template '3-nested'. [2022-11-18 20:30:52,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,145 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:52,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 20:30:52,171 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:52,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:52,171 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:52,171 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 20:30:52,176 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-11-18 20:30:52,177 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-18 20:30:52,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:52,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 20:30:52,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:52,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:52,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:52,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:52,222 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 20:30:52,227 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2022-11-18 20:30:52,227 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-18 20:30:52,246 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 20:30:52,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,260 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:30:52,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 20:30:52,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:30:52,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:30:52,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:30:52,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:30:52,286 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2022-11-18 20:30:52,297 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-18 20:30:52,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:30:52,314 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:30:52,323 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-11-18 20:30:52,323 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:30:52,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:30:52,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:30:52,328 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:30:52,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 20:30:52,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:30:52,340 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:30:52,340 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:30:52,340 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 [] [2022-11-18 20:30:52,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-18 20:30:52,354 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:30:52,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:52,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:30:52,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:52,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:52,426 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:30:52,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:30:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:30:52,474 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-18 20:30:52,477 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) [2022-11-18 20:30:52,544 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. [2022-11-18 20:30:52,548 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 [2022-11-18 20:30:52,555 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) [2022-11-18 20:30:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2022-11-18 20:30:52,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2022-11-18 20:30:52,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:52,559 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 1 letters. [2022-11-18 20:30:52,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:52,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 2 letters. [2022-11-18 20:30:52,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:30:52,561 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2022-11-18 20:30:52,567 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:30:52,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2022-11-18 20:30:52,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:30:52,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:30:52,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:30:52,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:30:52,571 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:52,572 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:52,572 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:30:52,572 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:30:52,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:30:52,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:30:52,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:30:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:30:52 BoogieIcfgContainer [2022-11-18 20:30:52,583 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:30:52,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:30:52,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:30:52,584 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:30:52,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:30:45" (3/4) ... [2022-11-18 20:30:52,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:30:52,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:30:52,595 INFO L158 Benchmark]: Toolchain (without parser) took 7327.92ms. Allocated memory is still 127.9MB. Free memory was 90.3MB in the beginning and 80.0MB in the end (delta: 10.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-18 20:30:52,596 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:52,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.85ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 103.0MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:30:52,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.63ms. Allocated memory is still 127.9MB. Free memory was 103.0MB in the beginning and 101.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:52,598 INFO L158 Benchmark]: Boogie Preprocessor took 32.74ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 100.9MB in the end (delta: 864.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:30:52,599 INFO L158 Benchmark]: RCFGBuilder took 346.27ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 91.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:30:52,601 INFO L158 Benchmark]: BuchiAutomizer took 6590.24ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 80.5MB in the end (delta: 11.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-18 20:30:52,602 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 127.9MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:30:52,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 127.9MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.85ms. Allocated memory is still 127.9MB. Free memory was 90.1MB in the beginning and 103.0MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.63ms. Allocated memory is still 127.9MB. Free memory was 103.0MB in the beginning and 101.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.74ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 100.9MB in the end (delta: 864.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.27ms. Allocated memory is still 127.9MB. Free memory was 100.5MB in the beginning and 91.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6590.24ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 80.5MB in the end (delta: 11.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 127.9MB. Free memory is still 80.0MB. 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 6.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.2s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s 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, 0.0s 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: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:30:52,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:30:52,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d64611f-fa05-444f-84b2-5dc1b5492e20/bin/uautomizer-TMbwUNV5ro/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