./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cf1a7837 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_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl --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 a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:26:48,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:26:48,209 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-12 02:26:48,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:26:48,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:26:48,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:26:48,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:26:48,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:26:48,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:26:48,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:26:48,256 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:26:48,256 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-12 02:26:48,257 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-12 02:26:48,258 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-12 02:26:48,258 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-12 02:26:48,259 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-12 02:26:48,259 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-12 02:26:48,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:26:48,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-12 02:26:48,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:26:48,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:26:48,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-12 02:26:48,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-12 02:26:48,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-12 02:26:48,263 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:26:48,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:26:48,264 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-12 02:26:48,264 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:26:48,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:26:48,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:26:48,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:26:48,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:26:48,267 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-12 02:26:48,268 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_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a723a67708085ac2edc65dca820ea0ff5f017c1387423fea83ca87f76f9f53c3 [2023-11-12 02:26:48,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:26:48,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:26:48,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:26:48,624 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:26:48,625 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:26:48,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 02:26:52,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:26:52,268 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:26:52,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 02:26:52,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/data/17e2a1e9a/74ce999a717d4a42a3a34307c7ba1f9c/FLAG7864d323b [2023-11-12 02:26:52,296 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/data/17e2a1e9a/74ce999a717d4a42a3a34307c7ba1f9c [2023-11-12 02:26:52,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:26:52,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:26:52,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:52,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:26:52,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:26:52,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e493add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52, skipping insertion in model container [2023-11-12 02:26:52,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:26:52,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:52,482 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:26:52,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:26:52,509 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:26:52,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52 WrapperNode [2023-11-12 02:26:52,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:26:52,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:52,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:26:52,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:26:52,520 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,546 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-12 02:26:52,546 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:26:52,547 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:26:52,547 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:26:52,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:26:52,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:26:52,572 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:26:52,572 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:26:52,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:26:52,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (1/1) ... [2023-11-12 02:26:52,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:52,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:52,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:52,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-12 02:26:52,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:26:52,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:26:52,769 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:26:52,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:26:52,829 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:26:52,836 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:26:52,836 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:26:52,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:52 BoogieIcfgContainer [2023-11-12 02:26:52,838 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:26:52,839 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-12 02:26:52,840 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-12 02:26:52,844 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-12 02:26:52,844 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:26:52,845 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 02:26:52" (1/3) ... [2023-11-12 02:26:52,846 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23cd18ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:26:52, skipping insertion in model container [2023-11-12 02:26:52,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:26:52,846 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:26:52" (2/3) ... [2023-11-12 02:26:52,846 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23cd18ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 02:26:52, skipping insertion in model container [2023-11-12 02:26:52,846 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-12 02:26:52,847 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:52" (3/3) ... [2023-11-12 02:26:52,848 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2023-11-12 02:26:52,903 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-12 02:26:52,903 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-12 02:26:52,903 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-12 02:26:52,903 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-12 02:26:52,903 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-12 02:26:52,903 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-12 02:26:52,904 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-12 02:26:52,904 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-12 02:26:52,908 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) [2023-11-12 02:26:52,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:26:52,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:26:52,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:26:52,928 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:26:52,928 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:26:52,928 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-12 02:26:52,928 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) [2023-11-12 02:26:52,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-12 02:26:52,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:26:52,930 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:26:52,930 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-12 02:26:52,930 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-12 02:26:52,937 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 4#L17-2true [2023-11-12 02:26:52,937 INFO L750 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 2#L19-2true assume !(main_~j~0#1 > 0); 9#L19-3true main_~i~0#1 := main_~i~0#1 - 1; 4#L17-2true [2023-11-12 02:26:52,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-12 02:26:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:52,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021904937] [2023-11-12 02:26:52,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:52,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:53,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:53,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:53,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:53,061 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2023-11-12 02:26:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:53,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749281475] [2023-11-12 02:26:53,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:53,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:53,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:53,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:53,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:53,081 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2023-11-12 02:26:53,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:53,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43430651] [2023-11-12 02:26:53,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:53,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:53,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:53,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43430651] [2023-11-12 02:26:53,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43430651] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:53,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:53,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:26:53,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019423262] [2023-11-12 02:26:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:53,297 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:53,298 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:53,298 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:53,298 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:53,299 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:26:53,299 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,299 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:53,299 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:53,299 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2023-11-12 02:26:53,299 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:53,300 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:53,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,331 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,430 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:53,431 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:26:53,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:53,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:53,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-12 02:26:53,515 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:26:53,515 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: [] [2023-11-12 02:26:53,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:53,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-12 02:26:53,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:53,534 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:53,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:26:53,557 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: [] [2023-11-12 02:26:53,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:53,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:53,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:53,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-12 02:26:53,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:53,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:26:53,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:53,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-12 02:26:53,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:26:53,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:53,689 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:53,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:53,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:53,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:53,690 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:26:53,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,690 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:53,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:53,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2023-11-12 02:26:53,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:53,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:53,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:53,810 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:53,815 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:26:53,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,827 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 [2023-11-12 02:26:53,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:26:53,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:26:53,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:26:53,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:26:53,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:26:53,845 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:26:53,845 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:26:53,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-12 02:26:53,864 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:26:53,867 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-12 02:26:53,868 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-12 02:26:53,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:53,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:53,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:53,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-12 02:26:53,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:26:53,906 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:26:53,907 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:26:53,908 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2023-11-12 02:26:53,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-12 02:26:53,919 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:26:53,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:53,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:26:53,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:53,980 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:53,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:54,062 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 [2023-11-12 02:26:54,065 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) [2023-11-12 02:26:54,112 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 22 states and 34 transitions. Complement of second has 8 states. [2023-11-12 02:26:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-12 02:26:54,119 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) [2023-11-12 02:26:54,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2023-11-12 02:26:54,121 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-12 02:26:54,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-12 02:26:54,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-12 02:26:54,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2023-11-12 02:26:54,126 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:26:54,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 8 states and 11 transitions. [2023-11-12 02:26:54,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-12 02:26:54,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-11-12 02:26:54,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-11-12 02:26:54,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:26:54,132 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-12 02:26:54,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-11-12 02:26:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-11-12 02:26:54,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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) [2023-11-12 02:26:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-11-12 02:26:54,158 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-11-12 02:26:54,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:26:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:26:54,162 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-11-12 02:26:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:54,189 INFO L93 Difference]: Finished difference Result 12 states and 16 transitions. [2023-11-12 02:26:54,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 16 transitions. [2023-11-12 02:26:54,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2023-11-12 02:26:54,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 16 transitions. [2023-11-12 02:26:54,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-12 02:26:54,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-12 02:26:54,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2023-11-12 02:26:54,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:26:54,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-11-12 02:26:54,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2023-11-12 02:26:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-11-12 02:26:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-11-12 02:26:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-11-12 02:26:54,194 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-12 02:26:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:26:54,196 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-11-12 02:26:54,196 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-12 02:26:54,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-11-12 02:26:54,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:26:54,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:26:54,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:26:54,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-12 02:26:54,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:26:54,198 INFO L748 eck$LassoCheckResult]: Stem: 101#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 102#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~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;main_~i~0#1 := main_~N~0#1; 99#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 96#L19-2 [2023-11-12 02:26:54,198 INFO L750 eck$LassoCheckResult]: Loop: 96#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 96#L19-2 [2023-11-12 02:26:54,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,199 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-12 02:26:54,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:54,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272878229] [2023-11-12 02:26:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,209 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:54,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,210 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2023-11-12 02:26:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:54,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152646716] [2023-11-12 02:26:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:54,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2023-11-12 02:26:54,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:54,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762050454] [2023-11-12 02:26:54,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:54,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:54,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:54,247 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:54,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:54,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:54,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:54,247 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:26:54,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,248 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:54,248 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:54,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2023-11-12 02:26:54,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:54,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:54,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,253 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,297 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:54,297 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:26:54,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,299 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:54,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:54,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-12 02:26:54,333 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:26:54,333 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: [] [2023-11-12 02:26:54,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-12 02:26:54,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:54,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:54,379 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:26:54,379 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-12 02:26:54,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,401 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:54,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:54,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-12 02:26:54,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,446 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:26:54,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:54,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-12 02:26:54,487 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:26:54,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,491 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:54,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:54,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:54,492 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:54,492 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:26:54,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:54,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:54,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2023-11-12 02:26:54,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:54,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:54,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:54,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:54,564 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:26:54,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,569 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,578 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 [2023-11-12 02:26:54,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:26:54,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:26:54,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:26:54,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:26:54,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:26:54,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:26:54,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-12 02:26:54,606 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:26:54,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,617 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,626 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 [2023-11-12 02:26:54,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:26:54,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:26:54,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:26:54,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:26:54,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-12 02:26:54,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-12 02:26:54,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-12 02:26:54,654 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-12 02:26:54,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,665 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,670 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 [2023-11-12 02:26:54,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:26:54,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:26:54,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:26:54,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:26:54,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:26:54,685 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:26:54,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:26:54,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-12 02:26:54,708 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:26:54,719 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:26:54,719 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:26:54,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:54,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,723 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,750 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:26:54,751 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:26:54,751 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:26:54,751 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-12 02:26:54,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-12 02:26:54,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:54,757 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:26:54,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:26:54,778 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,786 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:54,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:54,787 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 [2023-11-12 02:26:54,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 02:26:54,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20 transitions. Complement of second has 5 states. [2023-11-12 02:26:54,799 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 [2023-11-12 02:26:54,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-12 02:26:54,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-12 02:26:54,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-12 02:26:54,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 1 letters. [2023-11-12 02:26:54,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2023-11-12 02:26:54,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:54,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2023-11-12 02:26:54,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:26:54,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 15 transitions. [2023-11-12 02:26:54,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-11-12 02:26:54,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-11-12 02:26:54,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-11-12 02:26:54,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-12 02:26:54,804 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-11-12 02:26:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-11-12 02:26:54,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2023-11-12 02:26:54,806 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) [2023-11-12 02:26:54,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2023-11-12 02:26:54,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-12 02:26:54,806 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2023-11-12 02:26:54,807 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-12 02:26:54,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2023-11-12 02:26:54,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-12 02:26:54,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-12 02:26:54,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-12 02:26:54,808 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2023-11-12 02:26:54,808 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-12 02:26:54,809 INFO L748 eck$LassoCheckResult]: Stem: 155#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 156#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~j~0#1, main_~N~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~N~0#1;havoc main_#t~nondet0#1;main_~N~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_~N~0#1; 153#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 151#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 152#L19-2 assume !(main_~j~0#1 > 0); 157#L19-3 main_~i~0#1 := main_~i~0#1 - 1; 154#L17-2 assume !!(main_~i~0#1 > 0);main_~j~0#1 := main_~N~0#1; 150#L19-2 [2023-11-12 02:26:54,809 INFO L750 eck$LassoCheckResult]: Loop: 150#L19-2 assume !!(main_~j~0#1 > 0);main_~j~0#1 := main_~j~0#1 - 1; 150#L19-2 [2023-11-12 02:26:54,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:54,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1810841241, now seen corresponding path program 1 times [2023-11-12 02:26:54,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:54,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023226542] [2023-11-12 02:26:54,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:54,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:54,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023226542] [2023-11-12 02:26:54,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023226542] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:26:54,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406603191] [2023-11-12 02:26:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:54,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:26:54,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:54,897 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:26:54,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-12 02:26:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:54,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:26:54,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:54,995 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:26:55,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:55,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406603191] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:26:55,077 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:26:55,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-11-12 02:26:55,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414855561] [2023-11-12 02:26:55,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:26:55,079 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-12 02:26:55,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,079 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 2 times [2023-11-12 02:26:55,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399495098] [2023-11-12 02:26:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:55,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:55,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:26:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:26:55,088 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:26:55,104 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:55,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:55,104 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:55,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:55,105 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-12 02:26:55,105 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,105 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:55,105 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:55,105 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2023-11-12 02:26:55,105 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:55,106 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:55,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,165 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:55,165 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-12 02:26:55,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,172 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,178 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:55,178 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:55,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-12 02:26:55,201 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-12 02:26:55,201 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: [] [2023-11-12 02:26:55,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,207 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-12 02:26:55,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-12 02:26:55,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:55,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,250 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-12 02:26:55,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-12 02:26:55,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-12 02:26:55,296 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-12 02:26:55,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,303 INFO L210 LassoAnalysis]: Preferences: [2023-11-12 02:26:55,303 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-12 02:26:55,303 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-12 02:26:55,303 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-12 02:26:55,303 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-12 02:26:55,303 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,303 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-12 02:26:55,303 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-12 02:26:55,303 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2023-11-12 02:26:55,304 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-12 02:26:55,304 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-12 02:26:55,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-12 02:26:55,370 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-12 02:26:55,370 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-12 02:26:55,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,371 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,380 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 [2023-11-12 02:26:55,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-12 02:26:55,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-12 02:26:55,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-12 02:26:55,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-12 02:26:55,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-12 02:26:55,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-12 02:26:55,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-12 02:26:55,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-12 02:26:55,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-12 02:26:55,421 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-12 02:26:55,422 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-12 02:26:55,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-12 02:26:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:26:55,428 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-12 02:26:55,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-11-12 02:26:55,430 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-12 02:26:55,430 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-12 02:26:55,430 INFO L513 LassoAnalysis]: Proved termination. [2023-11-12 02:26:55,430 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = 1*ULTIMATE.start_main_~j~0#1 Supporting invariants [] [2023-11-12 02:26:55,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,437 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-12 02:26:55,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,482 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:55,484 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 [2023-11-12 02:26:55,484 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 13 states and 17 transitions. Complement of second has 5 states. [2023-11-12 02:26:55,506 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 [2023-11-12 02:26:55,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-12 02:26:55,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-12 02:26:55,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:55,513 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:26:55,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,561 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:55,563 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 [2023-11-12 02:26:55,563 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,577 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 13 states and 17 transitions. Complement of second has 5 states. [2023-11-12 02:26:55,578 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 [2023-11-12 02:26:55,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2023-11-12 02:26:55,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-12 02:26:55,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:55,587 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-12 02:26:55,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:55,623 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:26:55,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:26:55,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:55,626 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 [2023-11-12 02:26:55,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,644 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) Result 11 states and 13 transitions. Complement of second has 4 states. [2023-11-12 02:26:55,644 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 [2023-11-12 02:26:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2023-11-12 02:26:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2023-11-12 02:26:55,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-12 02:26:55,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:55,648 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 8 letters. Loop has 1 letters. [2023-11-12 02:26:55,648 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:55,649 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2023-11-12 02:26:55,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-12 02:26:55,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2023-11-12 02:26:55,651 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:26:55,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-11-12 02:26:55,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:26:55,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:26:55,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:26:55,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:55,652 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:55,653 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:55,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:55,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:26:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:26:55,655 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:26:55,655 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-12 02:26:55,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-12 02:26:55,656 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:26:55,656 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:26:55,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-12 02:26:55,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-12 02:26:55,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-12 02:26:55,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:55,657 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:55,657 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:55,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:26:55,659 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:26:55,659 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-12 02:26:55,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:26:55,660 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-12 02:26:55,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-12 02:26:55,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 02:26:55 BoogieIcfgContainer [2023-11-12 02:26:55,673 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-12 02:26:55,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:26:55,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:26:55,674 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:26:55,674 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:26:52" (3/4) ... [2023-11-12 02:26:55,676 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:26:55,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:26:55,679 INFO L158 Benchmark]: Toolchain (without parser) took 3377.06ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 90.2MB in the beginning and 91.1MB in the end (delta: -862.5kB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2023-11-12 02:26:55,679 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 138.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:55,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.06ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 80.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:55,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.81ms. Allocated memory is still 138.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:26:55,691 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 78.5MB in the end (delta: 587.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:55,691 INFO L158 Benchmark]: RCFGBuilder took 266.50ms. Allocated memory is still 138.4MB. Free memory was 78.2MB in the beginning and 69.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:26:55,692 INFO L158 Benchmark]: BuchiAutomizer took 2833.46ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 69.8MB in the beginning and 91.1MB in the end (delta: -21.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2023-11-12 02:26:55,692 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 207.6MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:26:55,694 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 138.4MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.06ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 80.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.81ms. Allocated memory is still 138.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 78.5MB in the end (delta: 587.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 266.50ms. Allocated memory is still 138.4MB. Free memory was 78.2MB in the beginning and 69.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2833.46ms. Allocated memory was 138.4MB in the beginning and 207.6MB in the end (delta: 69.2MB). Free memory was 69.8MB in the beginning and 91.1MB in the end (delta: -21.3MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 207.6MB. Free memory is still 91.1MB. 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 32 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax204 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-12 02:26:55,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:55,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-12 02:26:56,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:56,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:26:56,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a01be2fd-95c7-4cf2-9a54-ea3baad5fe6e/bin/uautomizer-verify-uTZkv6EMXl/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