./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-nt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-nt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca1a9df26896febb4415bcdd1e46e70fe2c8b283193110413dc193d22c6c8cb9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:37,992 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:38,119 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:09:38,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:38,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:38,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:38,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:38,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:38,172 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:09:38,177 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:09:38,178 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:38,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:38,179 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:38,181 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:09:38,181 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:09:38,182 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:09:38,182 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:09:38,184 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:09:38,185 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:09:38,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:38,186 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:09:38,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:09:38,187 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:38,187 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:09:38,188 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:38,188 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:09:38,188 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:09:38,189 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:09:38,189 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:38,190 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:09:38,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:38,191 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:09:38,192 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:38,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:38,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:38,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:38,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:38,193 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:09:38,194 INFO L153 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_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca1a9df26896febb4415bcdd1e46e70fe2c8b283193110413dc193d22c6c8cb9 [2023-11-21 22:09:38,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:38,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:38,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:38,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:38,529 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:38,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-nla/knuth-nosqrt-both-nt.i [2023-11-21 22:09:41,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:41,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:41,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/sv-benchmarks/c/termination-nla/knuth-nosqrt-both-nt.i [2023-11-21 22:09:41,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/data/9c397a60d/4db4065778f948bb8fc584591fa74cf0/FLAGcae7c69a2 [2023-11-21 22:09:41,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/data/9c397a60d/4db4065778f948bb8fc584591fa74cf0 [2023-11-21 22:09:41,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:41,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:41,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:41,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:41,896 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:41,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:41" (1/1) ... [2023-11-21 22:09:41,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aa6cbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:41, skipping insertion in model container [2023-11-21 22:09:41,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:41" (1/1) ... [2023-11-21 22:09:41,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:42,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:42,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:42,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:42,113 WARN L675 CHandler]: The function __VERIFIER_nondet_unsigned_int is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:09:42,121 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:42,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42 WrapperNode [2023-11-21 22:09:42,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:42,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:42,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:42,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:42,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,156 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-11-21 22:09:42,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:42,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:42,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:42,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:42,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,171 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,179 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 22:09:42,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:42,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:42,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:42,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:42,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (1/1) ... [2023-11-21 22:09:42,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:42,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:42,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:42,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:42,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2023-11-21 22:09:42,351 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:42,354 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:42,610 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:42,619 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:42,619 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:09:42,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:42 BoogieIcfgContainer [2023-11-21 22:09:42,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:42,622 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:09:42,622 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:09:42,626 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:09:42,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:42,627 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:09:41" (1/3) ... [2023-11-21 22:09:42,628 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45c733c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:42, skipping insertion in model container [2023-11-21 22:09:42,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:42,629 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:42" (2/3) ... [2023-11-21 22:09:42,629 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45c733c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:42, skipping insertion in model container [2023-11-21 22:09:42,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:42,629 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:42" (3/3) ... [2023-11-21 22:09:42,631 INFO L332 chiAutomizerObserver]: Analyzing ICFG knuth-nosqrt-both-nt.i [2023-11-21 22:09:42,704 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:09:42,704 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:09:42,704 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:09:42,704 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:09:42,704 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:09:42,704 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:09:42,705 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:09:42,705 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:09:42,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2023-11-21 22:09:42,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:09:42,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:42,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:42,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 22:09:42,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:09:42,731 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:09:42,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2023-11-21 22:09:42,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:09:42,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:42,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:42,733 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-21 22:09:42,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 22:09:42,740 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret1#1, main_#t~ret2#1, main_~s~0#1, main_~a~0#1, main_~r~0#1, main_~k~0#1, main_~q~0#1, main_~d~0#1, main_~n~0#1, main_~t~0#1;havoc main_~s~0#1;havoc main_~a~0#1;havoc main_~r~0#1;havoc main_~k~0#1;havoc main_~q~0#1;havoc main_~d~0#1;havoc main_~n~0#1;havoc main_~t~0#1;call main_#t~ret1#1 := __VERIFIER_nondet_unsigned_int();main_~s~0#1 := main_#t~ret1#1;havoc main_#t~ret1#1;call main_#t~ret2#1 := __VERIFIER_nondet_unsigned_int();main_~a~0#1 := main_#t~ret2#1;havoc main_#t~ret2#1; 3#L15true assume !(main_~s~0#1 % 4294967296 >= 8192); 7#L18true assume !(main_~a~0#1 % 4294967296 <= 2);main_~n~0#1 := main_~s~0#1 * main_~s~0#1;main_~d~0#1 := main_~a~0#1;main_~r~0#1 := main_~n~0#1 % 4294967296 % (main_~d~0#1 % 4294967296);main_~t~0#1 := 0;main_~k~0#1 := main_~n~0#1 % 4294967296 % ((main_~d~0#1 - 2) % 4294967296);main_~q~0#1 := 4 * (main_~n~0#1 % 4294967296 / ((main_~d~0#1 - 2) % 4294967296) - main_~n~0#1 % 4294967296 / (main_~d~0#1 % 4294967296)); 9#L40-2true [2023-11-21 22:09:42,741 INFO L750 eck$LassoCheckResult]: Loop: 9#L40-2true assume !false; 10#L28true assume !!(0 == (main_~d~0#1 * main_~k~0#1 - main_~d~0#1 * main_~t~0#1 - main_~a~0#1 * main_~k~0#1 + main_~a~0#1 * main_~t~0#1) % 4294967296); 4#L29true assume (2 * main_~r~0#1 + main_~q~0#1) % 4294967296 < main_~k~0#1 % 4294967296;main_~t~0#1 := main_~r~0#1;main_~r~0#1 := 2 + (2 * main_~r~0#1 - main_~k~0#1 + main_~q~0#1 + main_~d~0#1);main_~k~0#1 := main_~t~0#1;main_~q~0#1 := 4 + main_~q~0#1;main_~d~0#1 := 2 + main_~d~0#1; 9#L40-2true [2023-11-21 22:09:42,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:42,745 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-21 22:09:42,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:42,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022788103] [2023-11-21 22:09:42,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:42,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:42,827 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:09:42,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967882895] [2023-11-21 22:09:42,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:42,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:42,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:09:42,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:09:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:42,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:42,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:42,995 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:42,996 INFO L85 PathProgramCache]: Analyzing trace with hash 50807, now seen corresponding path program 1 times [2023-11-21 22:09:42,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:42,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277668210] [2023-11-21 22:09:42,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:42,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:43,004 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:09:43,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174468203] [2023-11-21 22:09:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:43,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:43,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:43,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:09:43,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:09:43,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:43,077 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:43,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:43,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:43,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1806911792, now seen corresponding path program 1 times [2023-11-21 22:09:43,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:43,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984757429] [2023-11-21 22:09:43,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:43,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:43,106 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:09:43,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855227430] [2023-11-21 22:09:43,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:43,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:09:43,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:43,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:09:43,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:10:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:42,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:10:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:10:54,561 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:10:54,785 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:54,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:54,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:54,787 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:54,787 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:10:54,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:54,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:54,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:54,788 INFO L133 ssoRankerPreferences]: Filename of dumped script: knuth-nosqrt-both-nt.i_Iteration1_Loop [2023-11-21 22:10:54,788 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:54,788 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:54,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:55,365 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:55,366 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:10:55,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:55,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:55,376 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:55,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:10:55,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:10:55,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:10:55,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-21 22:10:55,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:55,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:55,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:55,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:10:55,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:10:55,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:10:55,489 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:10:55,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:55,509 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:10:55,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:10:55,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:10:55,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:10:55,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:10:55,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:55,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:10:55,511 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:10:55,511 INFO L133 ssoRankerPreferences]: Filename of dumped script: knuth-nosqrt-both-nt.i_Iteration1_Loop [2023-11-21 22:10:55,511 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:10:55,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:10:55,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:10:56,466 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:10:56,471 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:10:56,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:56,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:56,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:56,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:10:56,487 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 [2023-11-21 22:10:56,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:56,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:56,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:56,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:56,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:10:56,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:10:56,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:56,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:56,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:56,541 INFO L490 LassoAnalysis]: Using template '2-nested'. [2023-11-21 22:10:56,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:56,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:56,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:56,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:10:56,584 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 [2023-11-21 22:10:56,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:56,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:56,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:56,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:56,599 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-21 22:10:56,610 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-21 22:10:56,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:56,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:56,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:56,656 INFO L490 LassoAnalysis]: Using template '3-nested'. [2023-11-21 22:10:56,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:56,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:56,663 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:56,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:10:56,669 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 [2023-11-21 22:10:56,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:56,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:56,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:56,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:56,684 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2023-11-21 22:10:56,701 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-21 22:10:56,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:56,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:56,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:56,742 INFO L490 LassoAnalysis]: Using template '4-nested'. [2023-11-21 22:10:56,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:56,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:56,744 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:56,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:10:56,749 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 [2023-11-21 22:10:56,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:10:56,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:56,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:56,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:56,763 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2023-11-21 22:10:56,775 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2023-11-21 22:10:56,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:56,794 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:10:56,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:10:56,818 INFO L490 LassoAnalysis]: Using template '2-phase'. [2023-11-21 22:10:56,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:10:56,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:56,820 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:56,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_754cb365-e265-431b-88a3-90cc028b1525/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:10:56,850 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 [2023-11-21 22:10:56,866 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2023-11-21 22:10:56,866 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2023-11-21 22:10:56,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:10:56,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:10:56,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:10:56,867 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2023-11-21 22:10:56,882 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2023-11-21 22:10:56,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:10:56,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings.