./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/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_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/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 64bit --witnessprinter.graph.data.programhash 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:43,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:43,647 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:24:43,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:43,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:43,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:43,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:43,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:43,684 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:43,685 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:43,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:43,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:43,687 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:43,688 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:24:43,689 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:24:43,689 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:24:43,690 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:24:43,691 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:24:43,691 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:24:43,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:43,693 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:24:43,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:43,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:43,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:24:43,695 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:24:43,695 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:24:43,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:24:43,696 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:43,697 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:24:43,697 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:43,698 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:43,699 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:43,699 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:43,700 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:43,700 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:24:43,701 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_082592b3-bb4b-4a18-8565-d62dc2b521e0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59f8de3095dec84b471ea17a2f8054509a628ca6c3fce9f023768548ca2b0891 [2023-11-21 22:24:43,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:43,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:43,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:43,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:43,975 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:43,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-21 22:24:47,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:47,532 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:47,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-21 22:24:47,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/data/c80cf0a8a/2217529868f94465bb324e3e3126cdd1/FLAG215eab20f [2023-11-21 22:24:47,565 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/data/c80cf0a8a/2217529868f94465bb324e3e3126cdd1 [2023-11-21 22:24:47,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:47,578 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:47,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:47,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:47,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:47,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a376d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47, skipping insertion in model container [2023-11-21 22:24:47,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,612 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:47,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:47,805 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:47,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:47,837 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:47,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47 WrapperNode [2023-11-21 22:24:47,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:47,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:47,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:47,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:47,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,872 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-11-21 22:24:47,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:47,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:47,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:47,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:47,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,887 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,894 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 22:24:47,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:47,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:47,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:47,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:47,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (1/1) ... [2023-11-21 22:24:47,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:47,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:47,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:48,097 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:48,100 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:48,187 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:48,197 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:48,197 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:24:48,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:48 BoogieIcfgContainer [2023-11-21 22:24:48,199 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:48,200 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:24:48,201 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:24:48,205 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:24:48,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:24:48,207 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:24:47" (1/3) ... [2023-11-21 22:24:48,208 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@673832c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:24:48, skipping insertion in model container [2023-11-21 22:24:48,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:24:48,208 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:47" (2/3) ... [2023-11-21 22:24:48,209 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@673832c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:24:48, skipping insertion in model container [2023-11-21 22:24:48,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:24:48,209 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:48" (3/3) ... [2023-11-21 22:24:48,211 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c [2023-11-21 22:24:48,294 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:24:48,294 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:24:48,294 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:24:48,295 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:24:48,295 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:24:48,295 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:24:48,295 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:24:48,296 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:24:48,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 22:24:48,322 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:48,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:24:48,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:24:48,329 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:24:48,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:24:48,331 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:24:48,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 22:24:48,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:48,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:24:48,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:24:48,334 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:24:48,335 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:24:48,346 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L17true assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 7#L21-2true [2023-11-21 22:24:48,347 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!(main_~i~0#1 < main_~n~0#1); 5#L21true assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 7#L21-2true [2023-11-21 22:24:48,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:48,355 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-11-21 22:24:48,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:48,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079529697] [2023-11-21 22:24:48,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:48,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,477 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:48,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:48,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-11-21 22:24:48,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:48,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306383828] [2023-11-21 22:24:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:48,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:48,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:48,499 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-11-21 22:24:48,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:48,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960554507] [2023-11-21 22:24:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:48,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:48,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:48,521 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:48,597 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:48,598 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:48,598 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:48,598 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:48,598 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:24:48,599 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:48,599 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:48,599 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:48,599 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-21 22:24:48,599 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:48,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:48,619 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 22:24:48,632 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 22:24:48,637 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 22:24:48,647 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 22:24:48,707 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:48,708 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:24:48,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:48,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:48,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:48,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:24:48,750 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:48,750 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:48,789 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:24:48,789 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: [] [2023-11-21 22:24:48,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:48,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:48,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:48,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:48,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:48,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:48,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:24:48,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:24:48,842 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: [] [2023-11-21 22:24:48,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-21 22:24:48,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:48,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:48,866 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:48,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:24:48,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:48,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:48,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:48,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:48,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:48,920 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:48,931 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:24:48,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:48,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:24:49,155 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:24:49,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:49,159 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:49,159 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:49,160 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:49,160 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:49,160 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:24:49,160 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,160 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:49,160 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:49,160 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration1_Loop [2023-11-21 22:24:49,160 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:49,161 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:49,171 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 22:24:49,179 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 22:24:49,187 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 22:24:49,201 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 22:24:49,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:49,278 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:24:49,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,281 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,287 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 22:24:49,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:49,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:49,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:49,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:49,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:24:49,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:24:49,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:24:49,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:24:49,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:49,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,346 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,359 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 22:24:49,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-21 22:24:49,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:49,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:49,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:49,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:49,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:24:49,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:24:49,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:24:49,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:49,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,432 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-21 22:24:49,441 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 22:24:49,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:49,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:24:49,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:49,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:49,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:49,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:24:49,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:24:49,461 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:24:49,471 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-21 22:24:49,472 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:24:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,499 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-21 22:24:49,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:24:49,501 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:24:49,502 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:24:49,502 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-21 22:24:49,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-21 22:24:49,546 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:24:49,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:49,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:49,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:49,602 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:49,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:49,641 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 [2023-11-21 22:24:49,643 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:49,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 33 transitions. Complement of second has 6 states. [2023-11-21 22:24:49,684 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 [2023-11-21 22:24:49,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:49,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2023-11-21 22:24:49,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-21 22:24:49,692 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:49,692 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-21 22:24:49,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:49,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-21 22:24:49,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:49,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-11-21 22:24:49,697 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:49,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 9 states and 12 transitions. [2023-11-21 22:24:49,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-21 22:24:49,702 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-11-21 22:24:49,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-11-21 22:24:49,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:24:49,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-21 22:24:49,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-11-21 22:24:49,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-21 22:24:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 22:24:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-11-21 22:24:49,731 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-21 22:24:49,732 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-11-21 22:24:49,732 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:24:49,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-11-21 22:24:49,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:49,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:24:49,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:24:49,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-11-21 22:24:49,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:24:49,734 INFO L748 eck$LassoCheckResult]: Stem: 78#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 79#L-1 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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 72#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 73#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 74#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 75#L21-2 [2023-11-21 22:24:49,735 INFO L750 eck$LassoCheckResult]: Loop: 75#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 80#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 75#L21-2 [2023-11-21 22:24:49,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:49,735 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-11-21 22:24:49,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:49,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861111408] [2023-11-21 22:24:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:49,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:49,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:49,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861111408] [2023-11-21 22:24:49,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861111408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:49,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:49,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:49,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712077570] [2023-11-21 22:24:49,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:49,801 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:24:49,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:49,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-11-21 22:24:49,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:49,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121885740] [2023-11-21 22:24:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:49,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:49,808 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:49,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:49,836 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:49,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:49,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:49,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:49,837 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:24:49,837 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,837 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:49,837 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:49,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-21 22:24:49,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:49,838 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:49,839 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 22:24:49,843 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 22:24:49,850 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 22:24:49,854 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 22:24:49,894 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:49,895 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:24:49,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,915 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:49,915 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:49,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-21 22:24:49,939 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:24:49,939 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:24:49,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-11-21 22:24:49,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:49,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:49,964 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:49,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:49,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:49,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-21 22:24:50,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:50,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,030 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:24:50,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:50,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-21 22:24:50,241 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:24:50,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:50,247 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:50,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:50,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:50,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:50,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:24:50,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,248 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:50,248 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:50,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration2_Loop [2023-11-21 22:24:50,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:50,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:50,250 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 22:24:50,257 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 22:24:50,261 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 22:24:50,270 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 22:24:50,330 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:50,331 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:24:50,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,339 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-21 22:24:50,355 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 22:24:50,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:50,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:24:50,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:50,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:50,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:50,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:24:50,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:24:50,402 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:24:50,407 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:24:50,407 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 22:24:50,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,410 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-21 22:24:50,423 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:24:50,423 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:24:50,423 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:24:50,423 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0#1, ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~m~0#1 - 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-21 22:24:50,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-11-21 22:24:50,452 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:24:50,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:50,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:50,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:50,511 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:50,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:50,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:50,516 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 [2023-11-21 22:24:50,516 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:24:50,532 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13 states and 18 transitions. Complement of second has 5 states. [2023-11-21 22:24:50,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:24:50,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:24:50,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-21 22:24:50,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-11-21 22:24:50,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:50,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-21 22:24:50,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:50,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-11-21 22:24:50,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:50,537 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-11-21 22:24:50,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:50,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-11-21 22:24:50,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-11-21 22:24:50,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-21 22:24:50,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-11-21 22:24:50,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:24:50,542 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 22:24:50,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-11-21 22:24:50,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-21 22:24:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 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 22:24:50,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-11-21 22:24:50,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-11-21 22:24:50,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:50,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:24:50,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:24:50,550 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:50,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:24:50,564 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-11-21 22:24:50,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-11-21 22:24:50,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:50,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 18 transitions. [2023-11-21 22:24:50,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-11-21 22:24:50,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-21 22:24:50,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2023-11-21 22:24:50,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:24:50,572 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 18 transitions. [2023-11-21 22:24:50,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2023-11-21 22:24:50,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2023-11-21 22:24:50,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 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 22:24:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2023-11-21 22:24:50,578 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-21 22:24:50,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:24:50,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-11-21 22:24:50,581 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-21 22:24:50,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2023-11-21 22:24:50,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:24:50,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:24:50,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:24:50,584 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2023-11-21 22:24:50,584 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:24:50,584 INFO L748 eck$LassoCheckResult]: Stem: 167#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 168#L-1 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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 161#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 162#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 169#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 173#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 172#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 170#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 163#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 164#L21-2 [2023-11-21 22:24:50,585 INFO L750 eck$LassoCheckResult]: Loop: 164#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 171#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 164#L21-2 [2023-11-21 22:24:50,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:50,586 INFO L85 PathProgramCache]: Analyzing trace with hash -446365265, now seen corresponding path program 1 times [2023-11-21 22:24:50,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:50,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847335561] [2023-11-21 22:24:50,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:50,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:50,680 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:24:50,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847335561] [2023-11-21 22:24:50,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847335561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:24:50,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591328712] [2023-11-21 22:24:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:50,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:24:50,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,683 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-21 22:24:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:50,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:24:50,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 22:24:50,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:24:50,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591328712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:50,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:24:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-21 22:24:50,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664281332] [2023-11-21 22:24:50,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:50,776 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-21 22:24:50,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:50,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-11-21 22:24:50,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:50,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909233853] [2023-11-21 22:24:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:50,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:50,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:50,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:50,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:50,834 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:50,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:50,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:50,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:50,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:24:50,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:50,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:50,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-21 22:24:50,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:50,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:50,843 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 22:24:50,848 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 22:24:50,851 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 22:24:50,860 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 22:24:50,908 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:50,909 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:24:50,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,914 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:50,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:50,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-21 22:24:50,942 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:24:50,943 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Honda state: {ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~i~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:24:50,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:50,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:50,964 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:50,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:50,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:50,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-21 22:24:50,989 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:24:50,989 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:24:51,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,015 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:51,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:51,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-21 22:24:51,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,074 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:24:51,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:51,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-21 22:24:51,260 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:24:51,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,263 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:51,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:51,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:51,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:51,264 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:24:51,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:51,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:51,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration3_Loop [2023-11-21 22:24:51,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:51,264 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:51,266 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 22:24:51,273 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 22:24:51,277 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 22:24:51,283 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 22:24:51,327 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:51,327 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:24:51,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,331 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,344 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 22:24:51,356 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:51,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:24:51,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:51,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:51,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:51,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-21 22:24:51,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:24:51,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:24:51,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:24:51,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,408 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 22:24:51,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-21 22:24:51,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:51,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:51,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:51,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:51,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-21 22:24:51,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-21 22:24:51,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-21 22:24:51,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,496 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-21 22:24:51,508 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 22:24:51,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:51,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:24:51,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:51,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:51,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:51,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:24:51,525 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:24:51,534 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:24:51,538 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:24:51,539 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:24:51,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:51,540 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:51,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:24:51,543 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:24:51,543 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:24:51,543 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~m~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~m~0#1 Supporting invariants [] [2023-11-21 22:24:51,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-21 22:24:51,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,570 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:24:51,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,644 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:51,652 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 [2023-11-21 22:24:51,652 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,664 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 5 states. [2023-11-21 22:24:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:24:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-21 22:24:51,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-21 22:24:51,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:51,670 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-21 22:24:51,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,724 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:51,728 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 22:24:51,729 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,745 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 21 transitions. Complement of second has 5 states. [2023-11-21 22:24:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:24:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-11-21 22:24:51,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-21 22:24:51,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:51,750 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-21 22:24:51,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:51,800 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:51,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:51,806 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-21 22:24:51,806 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,820 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 4 states. [2023-11-21 22:24:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:24:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:24:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-11-21 22:24:51,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-11-21 22:24:51,824 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:51,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-11-21 22:24:51,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:51,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-11-21 22:24:51,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:51,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-11-21 22:24:51,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 22:24:51,827 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 20 transitions. [2023-11-21 22:24:51,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-11-21 22:24:51,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-11-21 22:24:51,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2023-11-21 22:24:51,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:24:51,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-11-21 22:24:51,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2023-11-21 22:24:51,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2023-11-21 22:24:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 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 22:24:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-21 22:24:51,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-21 22:24:51,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:24:51,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:24:51,830 INFO L87 Difference]: Start difference. First operand 8 states and 10 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 22:24:51,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:24:51,840 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2023-11-21 22:24:51,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2023-11-21 22:24:51,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 22:24:51,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 10 transitions. [2023-11-21 22:24:51,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-21 22:24:51,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-21 22:24:51,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 10 transitions. [2023-11-21 22:24:51,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-21 22:24:51,842 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-11-21 22:24:51,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 10 transitions. [2023-11-21 22:24:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2023-11-21 22:24:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 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 22:24:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2023-11-21 22:24:51,844 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-21 22:24:51,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:24:51,845 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2023-11-21 22:24:51,845 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-21 22:24:51,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2023-11-21 22:24:51,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-11-21 22:24:51,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:24:51,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:24:51,846 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-21 22:24:51,847 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-11-21 22:24:51,847 INFO L748 eck$LassoCheckResult]: Stem: 394#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 395#L-1 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_~i~0#1, main_~j~0#1, main_~m~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~m~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~m~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 389#L17 assume main_~m~0#1 > 0 && main_~n~0#1 > main_~m~0#1;main_~i~0#1 := 0;main_~j~0#1 := 0; 390#L21-2 [2023-11-21 22:24:51,847 INFO L750 eck$LassoCheckResult]: Loop: 390#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 392#L21 assume main_~j~0#1 < main_~m~0#1;main_~j~0#1 := 1 + main_~j~0#1; 393#L21-2 assume !!(main_~i~0#1 < main_~n~0#1); 391#L21 assume !(main_~j~0#1 < main_~m~0#1);main_~j~0#1 := 0;main_~i~0#1 := 1 + main_~i~0#1; 390#L21-2 [2023-11-21 22:24:51,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,848 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-11-21 22:24:51,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:51,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738239252] [2023-11-21 22:24:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:51,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:51,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1357385, now seen corresponding path program 1 times [2023-11-21 22:24:51,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:51,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237507588] [2023-11-21 22:24:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:51,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,868 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:51,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1805120106, now seen corresponding path program 2 times [2023-11-21 22:24:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580184071] [2023-11-21 22:24:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:51,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:51,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:51,946 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:51,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:51,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:51,947 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:51,947 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:24:51,947 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:51,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:51,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:51,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-21 22:24:51,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:51,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:51,949 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 22:24:51,956 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 22:24:51,960 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 22:24:51,966 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 22:24:52,024 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:52,024 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:24:52,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:52,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:52,026 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:52,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:24:52,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:52,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-21 22:24:52,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2023-11-21 22:24:52,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:52,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:52,060 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:52,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-21 22:24:52,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:24:52,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:24:52,215 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:24:52,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-11-21 22:24:52,218 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:24:52,218 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:24:52,218 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:24:52,218 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:24:52,219 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:24:52,219 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:52,219 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:24:52,219 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:24:52,219 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3.c_Iteration4_Loop [2023-11-21 22:24:52,219 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:24:52,219 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:24:52,220 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 22:24:52,239 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 22:24:52,245 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 22:24:52,258 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 22:24:52,325 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:24:52,326 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:24:52,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:52,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:52,331 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:52,340 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 22:24:52,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:24:52,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:24:52,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:24:52,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:24:52,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:24:52,357 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:24:52,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:24:52,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-21 22:24:52,362 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:24:52,368 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-11-21 22:24:52,369 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-21 22:24:52,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:24:52,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:52,370 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:52,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-21 22:24:52,373 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:24:52,374 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:24:52,374 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:24:52,374 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2023-11-21 22:24:52,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-11-21 22:24:52,386 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:24:52,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:52,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:24:52,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:52,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:24:52,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:24:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:24:52,462 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-21 22:24:52,462 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:24:52,479 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 12 states and 15 transitions. Complement of second has 4 states. [2023-11-21 22:24:52,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-21 22:24:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:24:52,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-11-21 22:24:52,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2023-11-21 22:24:52,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:52,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2023-11-21 22:24:52,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:52,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 8 letters. [2023-11-21 22:24:52,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:24:52,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2023-11-21 22:24:52,482 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:24:52,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2023-11-21 22:24:52,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 22:24:52,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 22:24:52,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 22:24:52,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:24:52,484 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:24:52,484 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:24:52,484 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:24:52,484 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-21 22:24:52,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:24:52,484 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:24:52,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 22:24:52,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:24:52 BoogieIcfgContainer [2023-11-21 22:24:52,493 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:24:52,494 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:24:52,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:24:52,494 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:24:52,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:48" (3/4) ... [2023-11-21 22:24:52,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:24:52,498 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:24:52,499 INFO L158 Benchmark]: Toolchain (without parser) took 4921.38ms. Allocated memory is still 184.5MB. Free memory was 148.8MB in the beginning and 111.4MB in the end (delta: 37.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-21 22:24:52,499 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:52,500 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.84ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 139.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:52,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.93ms. Allocated memory is still 184.5MB. Free memory was 139.0MB in the beginning and 137.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:52,501 INFO L158 Benchmark]: Boogie Preprocessor took 31.88ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 136.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:52,501 INFO L158 Benchmark]: RCFGBuilder took 292.52ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 127.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:24:52,502 INFO L158 Benchmark]: BuchiAutomizer took 4292.83ms. Allocated memory is still 184.5MB. Free memory was 127.5MB in the beginning and 112.5MB in the end (delta: 15.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2023-11-21 22:24:52,502 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 184.5MB. Free memory was 112.5MB in the beginning and 111.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:52,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 113.2MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.84ms. Allocated memory is still 184.5MB. Free memory was 148.4MB in the beginning and 139.0MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.93ms. Allocated memory is still 184.5MB. Free memory was 139.0MB in the beginning and 137.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.88ms. Allocated memory is still 184.5MB. Free memory was 137.9MB in the beginning and 136.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.52ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 127.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4292.83ms. Allocated memory is still 184.5MB. Free memory was 127.5MB in the beginning and 112.5MB in the end (delta: 15.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 184.5MB. Free memory was 112.5MB in the beginning and 111.4MB in the end (delta: 1.0MB). 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((-1 * j) + m) and consists of 4 locations. One deterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. One deterministic module has affine ranking function ((-1 * i) + n) and consists of 3 locations. One nondeterministic module has affine ranking function ((-1 * j) + m) and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 52 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax167 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-21 22:24:52,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-21 22:24:52,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-21 22:24:52,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-21 22:24:53,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082592b3-bb4b-4a18-8565-d62dc2b521e0/bin/uautomizer-verify-bycVGegfSx/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