./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff 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_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu --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 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:40,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:40,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 08:02:40,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:40,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:40,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:40,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:40,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:40,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:40,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:40,209 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:40,210 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:02:40,211 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:02:40,211 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:02:40,212 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:02:40,213 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:02:40,214 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:02:40,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:40,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:02:40,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:40,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:40,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:02:40,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:02:40,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:02:40,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:40,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:40,221 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:02:40,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:40,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:40,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:40,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:40,224 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:40,225 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:02:40,226 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_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2023-11-19 08:02:40,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:40,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:40,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:40,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:40,528 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:40,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-19 08:02:43,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:43,971 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:43,972 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-19 08:02:43,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/data/6492d9a00/abd136576f52473bb3f59b1d56d01f18/FLAGf99efece3 [2023-11-19 08:02:43,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/data/6492d9a00/abd136576f52473bb3f59b1d56d01f18 [2023-11-19 08:02:44,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:44,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:44,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:44,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:44,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:44,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:44,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77545c2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44, skipping insertion in model container [2023-11-19 08:02:44,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:43" (1/1) ... [2023-11-19 08:02:44,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:44,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:44,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:44,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:44,250 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:44,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44 WrapperNode [2023-11-19 08:02:44,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:44,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:44,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:44,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:44,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,284 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-19 08:02:44,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:44,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:44,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:44,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:44,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,297 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:44,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:44,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:44,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:44,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (1/1) ... [2023-11-19 08:02:44,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:44,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:44,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:44,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:44,519 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:44,522 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:44,683 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:44,691 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:44,692 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:02:44,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44 BoogieIcfgContainer [2023-11-19 08:02:44,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:44,697 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:02:44,697 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:02:44,703 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:02:44,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:02:44,705 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:02:43" (1/3) ... [2023-11-19 08:02:44,706 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b2c7260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:02:44, skipping insertion in model container [2023-11-19 08:02:44,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:02:44,707 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:44" (2/3) ... [2023-11-19 08:02:44,707 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b2c7260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:02:44, skipping insertion in model container [2023-11-19 08:02:44,707 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:02:44,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44" (3/3) ... [2023-11-19 08:02:44,715 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-19 08:02:44,817 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:02:44,817 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:02:44,817 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:02:44,817 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:02:44,817 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:02:44,818 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:02:44,818 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:02:44,818 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:02:44,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:44,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:02:44,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:44,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:44,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:02:44,864 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:02:44,864 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:02:44,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:44,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:02:44,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:44,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:44,869 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 08:02:44,869 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:02:44,878 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18-2true [2023-11-19 08:02:44,879 INFO L750 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 12#L19true assume !(0 != main_#t~nondet1#1);havoc main_#t~nondet1#1; 2#L19-2true main_~y~0#1 := main_~y~0#1 - 1; 7#L18-2true [2023-11-19 08:02:44,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:44,885 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 08:02:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:44,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450911104] [2023-11-19 08:02:44,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:44,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:45,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 41516, now seen corresponding path program 1 times [2023-11-19 08:02:45,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:45,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363445919] [2023-11-19 08:02:45,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:45,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,113 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:45,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash 28700458, now seen corresponding path program 1 times [2023-11-19 08:02:45,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:45,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841655304] [2023-11-19 08:02:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:45,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:45,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:45,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:45,246 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:45,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:45,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:45,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:45,247 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:45,248 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,248 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:45,248 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:45,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-19 08:02:45,249 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:45,249 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:45,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:45,412 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:45,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 08:02:45,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:45,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,460 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:45,460 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: [] [2023-11-19 08:02:45,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-19 08:02:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 08:02:45,487 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:45,487 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:45,508 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: [] [2023-11-19 08:02:45,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,538 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:45,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 08:02:45,560 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:45,560 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:45,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 08:02:45,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:45,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,600 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:45,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:45,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 08:02:45,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:45,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-19 08:02:45,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,673 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 08:02:45,675 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:45,675 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:45,723 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:45,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,732 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:45,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:45,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:45,733 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:45,733 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:45,733 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,733 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:45,733 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:45,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-19 08:02:45,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:45,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:45,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,741 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:45,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:45,841 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:45,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,858 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 [2023-11-19 08:02:45,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 08:02:45,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:45,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:45,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:45,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:45,880 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:02:45,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:02:45,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:45,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,916 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,930 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 [2023-11-19 08:02:45,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 08:02:45,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:45,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:45,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:45,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:45,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:02:45,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:02:45,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:45,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:45,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:45,987 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:45,998 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 [2023-11-19 08:02:46,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 08:02:46,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:46,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:46,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:46,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:46,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:46,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:46,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:46,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:46,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,042 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 08:02:46,057 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 [2023-11-19 08:02:46,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:46,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:46,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:46,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:46,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:46,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:46,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:46,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:46,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,116 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,132 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 [2023-11-19 08:02:46,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 08:02:46,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:46,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:46,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:46,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:46,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:46,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:46,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:46,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:46,174 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:46,174 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:02:46,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,226 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:46,226 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:46,226 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:46,227 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2023-11-19 08:02:46,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 08:02:46,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,248 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:46,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:46,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:46,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:46,316 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:46,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:46,392 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 [2023-11-19 08:02:46,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2023-11-19 08:02:46,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 42 states and 64 transitions. Complement of second has 8 states. [2023-11-19 08:02:46,469 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 [2023-11-19 08:02:46,475 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) [2023-11-19 08:02:46,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2023-11-19 08:02:46,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-19 08:02:46,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:46,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-19 08:02:46,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:46,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-19 08:02:46,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:46,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 64 transitions. [2023-11-19 08:02:46,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:02:46,490 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 21 states and 30 transitions. [2023-11-19 08:02:46,491 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-19 08:02:46,491 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-19 08:02:46,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2023-11-19 08:02:46,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:46,493 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-19 08:02:46,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2023-11-19 08:02:46,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-19 08:02:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2023-11-19 08:02:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2023-11-19 08:02:46,525 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-19 08:02:46,525 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-19 08:02:46,525 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:02:46,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2023-11-19 08:02:46,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:02:46,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:46,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:46,528 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:46,528 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:02:46,528 INFO L748 eck$LassoCheckResult]: Stem: 112#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 113#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 101#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 103#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 104#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 105#L20-1 assume !main_#t~short3#1; 108#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 109#L20-5 [2023-11-19 08:02:46,528 INFO L750 eck$LassoCheckResult]: Loop: 109#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 116#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 117#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 109#L20-5 [2023-11-19 08:02:46,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663475, now seen corresponding path program 1 times [2023-11-19 08:02:46,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:46,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137822356] [2023-11-19 08:02:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:46,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:46,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:46,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137822356] [2023-11-19 08:02:46,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137822356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:46,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:46,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:46,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40023365] [2023-11-19 08:02:46,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:46,608 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 08:02:46,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2023-11-19 08:02:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:46,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306766263] [2023-11-19 08:02:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:46,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:46,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:46,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,691 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:46,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:46,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:46,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:46,692 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:46,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:46,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:46,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-19 08:02:46,693 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:46,693 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:46,695 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:46,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:46,707 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:46,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:46,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:46,782 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:46,783 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:46,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,785 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,799 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:46,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:46,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 08:02:46,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:46,825 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: [] [2023-11-19 08:02:46,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,854 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,867 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:46,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:46,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-19 08:02:46,905 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:46,905 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: [] [2023-11-19 08:02:46,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:46,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:46,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-19 08:02:46,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:46,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:46,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:46,980 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:46,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-19 08:02:46,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:46,986 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:47,213 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:47,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:47,224 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:47,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:47,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:47,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:47,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:47,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:47,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:47,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:47,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-19 08:02:47,225 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:47,225 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:47,227 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:47,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:47,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:47,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:47,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:47,287 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:47,287 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:47,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:47,289 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:47,302 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 [2023-11-19 08:02:47,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-19 08:02:47,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:47,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:47,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:47,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:47,318 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:02:47,318 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:02:47,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:47,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:47,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:47,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:47,362 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:47,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-19 08:02:47,365 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 [2023-11-19 08:02:47,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:47,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:47,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:47,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:47,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:47,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:47,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:47,386 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:47,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:47,390 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:02:47,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:47,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:47,397 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:47,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-19 08:02:47,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:47,410 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:47,410 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:47,410 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2023-11-19 08:02:47,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:47,426 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:47,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:47,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:47,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:47,473 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:47,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:47,566 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:47,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-19 08:02:47,625 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 44 states and 63 transitions. Complement of second has 10 states. [2023-11-19 08:02:47,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:47,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-11-19 08:02:47,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2023-11-19 08:02:47,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-19 08:02:47,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:47,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-19 08:02:47,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:47,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-19 08:02:47,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:47,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2023-11-19 08:02:47,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-19 08:02:47,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2023-11-19 08:02:47,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-19 08:02:47,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-19 08:02:47,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2023-11-19 08:02:47,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:47,635 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2023-11-19 08:02:47,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2023-11-19 08:02:47,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2023-11-19 08:02:47,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 26 states have internal predecessors, (40), 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) [2023-11-19 08:02:47,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2023-11-19 08:02:47,639 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2023-11-19 08:02:47,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:47,644 INFO L87 Difference]: Start difference. First operand 27 states and 40 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:47,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:47,661 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2023-11-19 08:02:47,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-11-19 08:02:47,663 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 08:02:47,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2023-11-19 08:02:47,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-19 08:02:47,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-19 08:02:47,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2023-11-19 08:02:47,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:47,667 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-19 08:02:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2023-11-19 08:02:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-19 08:02:47,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 26 states have internal predecessors, (37), 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) [2023-11-19 08:02:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2023-11-19 08:02:47,672 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-19 08:02:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:47,674 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-19 08:02:47,674 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-19 08:02:47,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2023-11-19 08:02:47,675 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 08:02:47,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:47,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:47,677 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:47,677 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:47,677 INFO L748 eck$LassoCheckResult]: Stem: 293#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 282#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 284#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 298#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 303#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 290#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 291#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 288#L20-1 assume !main_#t~short3#1; 295#L20-3 [2023-11-19 08:02:47,677 INFO L750 eck$LassoCheckResult]: Loop: 295#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 300#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 278#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 279#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 302#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 285#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 286#L20-1 assume !main_#t~short3#1; 295#L20-3 [2023-11-19 08:02:47,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:47,678 INFO L85 PathProgramCache]: Analyzing trace with hash 585785626, now seen corresponding path program 1 times [2023-11-19 08:02:47,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:47,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141175076] [2023-11-19 08:02:47,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:47,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:47,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:47,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:47,700 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:47,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:47,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1831936327, now seen corresponding path program 1 times [2023-11-19 08:02:47,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:47,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25370888] [2023-11-19 08:02:47,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:47,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:47,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:47,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:47,718 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:47,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2046492146, now seen corresponding path program 1 times [2023-11-19 08:02:47,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:47,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809588652] [2023-11-19 08:02:47,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:47,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:47,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:47,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809588652] [2023-11-19 08:02:47,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809588652] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:02:47,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908103869] [2023-11-19 08:02:47,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:47,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:02:47,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:47,966 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:02:47,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-19 08:02:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 08:02:48,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:48,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:02:48,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:48,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908103869] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:02:48,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:02:48,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-19 08:02:48,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764978744] [2023-11-19 08:02:48,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,531 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:48,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:48,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:48,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:48,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:48,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:48,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:48,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:48,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-19 08:02:48,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:48,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:48,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,551 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,559 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,573 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,678 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:48,678 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:48,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:48,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:48,685 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:48,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-19 08:02:48,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:48,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:48,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:48,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:48,751 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:48,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-19 08:02:48,753 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:48,753 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:48,845 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:48,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:48,860 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:48,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:48,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:48,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:48,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:48,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:48,860 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:48,860 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:48,860 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-19 08:02:48,860 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:48,860 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:48,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:48,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:48,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:48,987 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:48,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:48,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:48,989 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:48,998 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 [2023-11-19 08:02:49,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-19 08:02:49,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:49,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:49,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:49,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:49,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:49,013 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:49,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:49,028 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:49,037 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:49,038 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:02:49,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:49,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:49,039 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:49,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:49,042 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:49,042 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:49,042 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-19 08:02:49,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-19 08:02:49,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:49,069 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:49,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:49,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:49,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:49,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:49,162 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:49,163 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:02:49,206 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 37 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 92 states and 128 transitions. Complement of second has 6 states. [2023-11-19 08:02:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:02:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-11-19 08:02:49,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-19 08:02:49,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:49,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2023-11-19 08:02:49,212 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:49,212 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2023-11-19 08:02:49,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:49,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2023-11-19 08:02:49,219 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2023-11-19 08:02:49,223 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2023-11-19 08:02:49,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-11-19 08:02:49,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-19 08:02:49,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2023-11-19 08:02:49,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:49,228 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-11-19 08:02:49,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2023-11-19 08:02:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2023-11-19 08:02:49,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 57 states have internal predecessors, (80), 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) [2023-11-19 08:02:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-19 08:02:49,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-19 08:02:49,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:49,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 08:02:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:02:49,239 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 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) [2023-11-19 08:02:49,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:49,737 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2023-11-19 08:02:49,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2023-11-19 08:02:49,739 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2023-11-19 08:02:49,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2023-11-19 08:02:49,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2023-11-19 08:02:49,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2023-11-19 08:02:49,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2023-11-19 08:02:49,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:49,742 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2023-11-19 08:02:49,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2023-11-19 08:02:49,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2023-11-19 08:02:49,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3076923076923077) internal successors, (102), 77 states have internal predecessors, (102), 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) [2023-11-19 08:02:49,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-19 08:02:49,749 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-19 08:02:49,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-19 08:02:49,750 INFO L428 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-19 08:02:49,751 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-19 08:02:49,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2023-11-19 08:02:49,752 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-19 08:02:49,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:49,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:49,753 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:49,753 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:49,753 INFO L748 eck$LassoCheckResult]: Stem: 792#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 793#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 801#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 797#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 798#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 853#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 852#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 851#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 794#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 789#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 790#L20-6 [2023-11-19 08:02:49,753 INFO L750 eck$LassoCheckResult]: Loop: 790#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 802#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 848#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 847#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 846#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 845#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 843#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 790#L20-6 [2023-11-19 08:02:49,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,754 INFO L85 PathProgramCache]: Analyzing trace with hash 979485188, now seen corresponding path program 1 times [2023-11-19 08:02:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007790922] [2023-11-19 08:02:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:49,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 1 times [2023-11-19 08:02:49,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840692894] [2023-11-19 08:02:49,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:49,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:49,782 INFO L85 PathProgramCache]: Analyzing trace with hash 303194510, now seen corresponding path program 1 times [2023-11-19 08:02:49,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:49,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181680811] [2023-11-19 08:02:49,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:49,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:49,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,791 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:49,800 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:49,867 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:49,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:49,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:49,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:49,868 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:49,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:49,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:49,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:49,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-19 08:02:49,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:49,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:49,869 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,872 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:49,952 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:49,952 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:49,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:49,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:49,954 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:49,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-19 08:02:49,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:49,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:49,986 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:49,986 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:50,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,011 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:50,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-19 08:02:50,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,077 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,080 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:50,080 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-19 08:02:50,249 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:50,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,255 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:50,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:50,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:50,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:50,255 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:50,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:50,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:50,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-19 08:02:50,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:50,256 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:50,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,261 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,270 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:50,357 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:50,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,358 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,360 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 [2023-11-19 08:02:50,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-19 08:02:50,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:50,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:50,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:50,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:50,373 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:50,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:50,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:50,376 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:50,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,390 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-19 08:02:50,393 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 [2023-11-19 08:02:50,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:50,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:50,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:50,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:50,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:50,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:50,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:50,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:50,410 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-19 08:02:50,411 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:02:50,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,412 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-19 08:02:50,416 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:50,416 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:50,416 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:50,417 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-19 08:02:50,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-11-19 08:02:50,438 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:50,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:50,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:50,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:50,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:50,548 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:50,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32 Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:02:50,588 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 78 states and 102 transitions. cyclomatic complexity: 32. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 180 states and 242 transitions. Complement of second has 7 states. [2023-11-19 08:02:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:50,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2023-11-19 08:02:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 08:02:50,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2023-11-19 08:02:50,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:50,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2023-11-19 08:02:50,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:50,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2023-11-19 08:02:50,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:50,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2023-11-19 08:02:50,605 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-19 08:02:50,609 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2023-11-19 08:02:50,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2023-11-19 08:02:50,613 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-19 08:02:50,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2023-11-19 08:02:50,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:50,615 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2023-11-19 08:02:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2023-11-19 08:02:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2023-11-19 08:02:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 135 states have (on average 1.3407407407407408) internal successors, (181), 134 states have internal predecessors, (181), 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) [2023-11-19 08:02:50,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2023-11-19 08:02:50,631 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-19 08:02:50,631 INFO L428 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-19 08:02:50,631 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-19 08:02:50,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2023-11-19 08:02:50,632 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-19 08:02:50,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:50,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:50,634 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:50,634 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-19 08:02:50,634 INFO L748 eck$LassoCheckResult]: Stem: 1126#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 1114#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1115#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1163#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1162#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1160#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1156#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1157#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1161#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1158#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1159#L20-1 assume !main_#t~short3#1; 1170#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 1168#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 1169#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 1155#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 1141#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 1119#L20-5 [2023-11-19 08:02:50,634 INFO L750 eck$LassoCheckResult]: Loop: 1119#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 1120#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 1123#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 1119#L20-5 [2023-11-19 08:02:50,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1318299976, now seen corresponding path program 2 times [2023-11-19 08:02:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:50,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987255667] [2023-11-19 08:02:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:50,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:50,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:50,674 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2023-11-19 08:02:50,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:50,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166763282] [2023-11-19 08:02:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:50,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:50,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash -293611421, now seen corresponding path program 3 times [2023-11-19 08:02:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787890865] [2023-11-19 08:02:50,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:50,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:50,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,710 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:50,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:50,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:50,760 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:50,760 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:50,760 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:50,760 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:50,760 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:50,760 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,760 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:50,760 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:50,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-19 08:02:50,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:50,760 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:50,761 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,767 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:50,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:50,818 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:50,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,819 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-19 08:02:50,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:50,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,833 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:50,833 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Honda state: {v_rep(ite ULTIMATE.start_main_#t~short3#1 1 0)_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:50,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-11-19 08:02:50,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,848 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-19 08:02:50,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:50,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,870 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:50,870 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:50,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,888 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:50,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-19 08:02:50,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:50,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:50,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,967 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:50,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:50,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:50,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-19 08:02:51,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:51,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:51,143 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:51,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:51,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:51,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:51,143 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:51,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:51,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:51,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-19 08:02:51,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:51,144 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:51,145 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:51,158 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:51,160 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:51,163 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:51,169 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:51,215 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:51,215 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:51,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,217 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,220 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 [2023-11-19 08:02:51,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-19 08:02:51,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:51,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:51,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:51,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:51,236 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:02:51,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:02:51,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:51,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:51,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,278 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,281 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 [2023-11-19 08:02:51,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:51,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:51,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:51,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:51,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:51,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:51,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:51,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-19 08:02:51,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:51,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2023-11-19 08:02:51,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,324 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-19 08:02:51,327 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 [2023-11-19 08:02:51,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:51,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:51,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:51,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:51,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:51,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:51,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:51,368 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:51,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:51,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,390 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,397 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 [2023-11-19 08:02:51,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-19 08:02:51,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:51,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:51,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:51,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:51,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:51,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:51,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:51,428 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:51,431 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:51,431 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 08:02:51,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:51,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:51,433 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:51,440 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:51,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:51,440 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:51,440 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~m~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 2*ULTIMATE.start_main_~m~0#1 + 1 Supporting invariants [] [2023-11-19 08:02:51,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-19 08:02:51,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:51,462 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:51,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,522 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:51,593 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:51,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:51,661 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 163 states and 210 transitions. Complement of second has 9 states. [2023-11-19 08:02:51,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-19 08:02:51,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-19 08:02:51,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:51,668 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:02:51,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,727 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:51,788 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:51,788 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:51,830 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 163 states and 210 transitions. Complement of second has 9 states. [2023-11-19 08:02:51,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:51,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:51,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-19 08:02:51,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-19 08:02:51,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:51,833 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:02:51,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:51,898 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 08:02:51,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:51,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:51,968 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 3 loop predicates [2023-11-19 08:02:51,968 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:52,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 135 states and 181 transitions. cyclomatic complexity: 60. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 238 states and 295 transitions. Complement of second has 8 states. [2023-11-19 08:02:52,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-19 08:02:52,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-19 08:02:52,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-19 08:02:52,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:52,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 20 letters. Loop has 3 letters. [2023-11-19 08:02:52,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:52,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 6 letters. [2023-11-19 08:02:52,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:52,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 295 transitions. [2023-11-19 08:02:52,027 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 40 [2023-11-19 08:02:52,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 155 states and 195 transitions. [2023-11-19 08:02:52,029 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2023-11-19 08:02:52,029 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2023-11-19 08:02:52,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 195 transitions. [2023-11-19 08:02:52,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:52,030 INFO L218 hiAutomatonCegarLoop]: Abstraction has 155 states and 195 transitions. [2023-11-19 08:02:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 195 transitions. [2023-11-19 08:02:52,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 97. [2023-11-19 08:02:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 96 states have internal predecessors, (126), 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) [2023-11-19 08:02:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2023-11-19 08:02:52,048 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-19 08:02:52,048 INFO L428 stractBuchiCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-19 08:02:52,048 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-19 08:02:52,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 126 transitions. [2023-11-19 08:02:52,049 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2023-11-19 08:02:52,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:52,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:52,050 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:52,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:52,051 INFO L748 eck$LassoCheckResult]: Stem: 2055#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2062#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2089#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2086#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2088#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2087#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2085#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2070#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2067#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2068#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2071#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2135#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2134#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2049#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2050#L20-1 [2023-11-19 08:02:52,051 INFO L750 eck$LassoCheckResult]: Loop: 2050#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2065#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2066#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2039#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2040#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2128#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2129#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2050#L20-1 [2023-11-19 08:02:52,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:52,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1293105010, now seen corresponding path program 2 times [2023-11-19 08:02:52,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:52,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754606797] [2023-11-19 08:02:52,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:52,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:52,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:52,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754606797] [2023-11-19 08:02:52,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754606797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:52,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:02:52,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272399338] [2023-11-19 08:02:52,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:52,102 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-19 08:02:52,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 627213861, now seen corresponding path program 2 times [2023-11-19 08:02:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:52,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606316814] [2023-11-19 08:02:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:52,108 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:52,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:52,233 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:52,234 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:52,234 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:52,235 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:52,235 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:52,235 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:52,235 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:52,235 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:52,235 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-19 08:02:52,235 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:52,235 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:52,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,435 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:52,435 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:52,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:52,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:52,437 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:52,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:52,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:52,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-19 08:02:52,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-11-19 08:02:52,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:52,480 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:52,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-19 08:02:52,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:52,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:52,747 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:52,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-11-19 08:02:52,752 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:52,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:52,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:52,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:52,753 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:52,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:52,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:52,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:52,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-19 08:02:52,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:52,753 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:52,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,819 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:52,961 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:52,961 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:52,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:52,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:52,963 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:52,973 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 [2023-11-19 08:02:52,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-19 08:02:52,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:52,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:52,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:52,987 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 08:02:52,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:52,989 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 08:02:52,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:53,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:53,016 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:53,017 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:02:53,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:53,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:53,018 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:53,021 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:53,021 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:53,022 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:53,022 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-11-19 08:02:53,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-19 08:02:53,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-11-19 08:02:53,038 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:53,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:53,201 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:53,202 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-11-19 08:02:53,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:53,242 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 112 states and 143 transitions. Complement of second has 7 states. [2023-11-19 08:02:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-19 08:02:53,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-19 08:02:53,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:53,244 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:02:53,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:53,330 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:53,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 113 states and 143 transitions. Complement of second has 9 states. [2023-11-19 08:02:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2023-11-19 08:02:53,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-19 08:02:53,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:53,363 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-19 08:02:53,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,388 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:53,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:53,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:53,464 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 3 loop predicates [2023-11-19 08:02:53,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 126 transitions. cyclomatic complexity: 39. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 202 states and 273 transitions. Complement of second has 8 states. [2023-11-19 08:02:53,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:53,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2023-11-19 08:02:53,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-19 08:02:53,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:53,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-19 08:02:53,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:53,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 14 letters. [2023-11-19 08:02:53,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:53,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 273 transitions. [2023-11-19 08:02:53,502 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2023-11-19 08:02:53,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 82 states and 100 transitions. [2023-11-19 08:02:53,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-19 08:02:53,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-19 08:02:53,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2023-11-19 08:02:53,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:53,505 INFO L218 hiAutomatonCegarLoop]: Abstraction has 82 states and 100 transitions. [2023-11-19 08:02:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2023-11-19 08:02:53,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 26. [2023-11-19 08:02:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 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) [2023-11-19 08:02:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-19 08:02:53,511 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-19 08:02:53,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:53,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:53,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:53,513 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2023-11-19 08:02:53,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:02:53,526 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-19 08:02:53,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2023-11-19 08:02:53,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 08:02:53,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 22 transitions. [2023-11-19 08:02:53,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-19 08:02:53,528 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-19 08:02:53,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2023-11-19 08:02:53,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-19 08:02:53,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-19 08:02:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2023-11-19 08:02:53,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-19 08:02:53,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:53,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-11-19 08:02:53,532 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-19 08:02:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:53,534 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-19 08:02:53,534 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-19 08:02:53,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2023-11-19 08:02:53,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-19 08:02:53,534 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:02:53,534 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:02:53,535 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:53,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:53,536 INFO L748 eck$LassoCheckResult]: Stem: 2869#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2870#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2861#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2862#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2864#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2865#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2867#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2868#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2871#L20-1 [2023-11-19 08:02:53,536 INFO L750 eck$LassoCheckResult]: Loop: 2871#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2872#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2874#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2859#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2860#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2863#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2866#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2865#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2867#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2868#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2871#L20-1 [2023-11-19 08:02:53,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,536 INFO L85 PathProgramCache]: Analyzing trace with hash 295990974, now seen corresponding path program 1 times [2023-11-19 08:02:53,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:53,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595889942] [2023-11-19 08:02:53,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:53,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,576 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:53,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2074549754, now seen corresponding path program 1 times [2023-11-19 08:02:53,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:53,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696549404] [2023-11-19 08:02:53,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:53,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:53,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:53,596 INFO L85 PathProgramCache]: Analyzing trace with hash 809095299, now seen corresponding path program 3 times [2023-11-19 08:02:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:53,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371489686] [2023-11-19 08:02:53,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:53,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:53,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:53,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:53,786 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:53,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:53,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:53,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:53,786 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:02:53,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:53,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:53,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:53,787 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-19 08:02:53,787 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:53,787 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:53,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:53,976 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:53,976 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:02:53,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:53,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:53,993 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:53,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:53,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:54,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-19 08:02:54,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:02:54,018 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:02:54,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:54,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,039 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:02:54,045 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:54,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-19 08:02:54,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2023-11-19 08:02:54,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,086 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-19 08:02:54,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:02:54,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:02:54,197 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 08:02:54,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:54,202 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:02:54,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:02:54,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:02:54,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:02:54,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:02:54,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:02:54,203 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:02:54,203 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-19 08:02:54,203 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:02:54,203 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:02:54,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,286 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 08:02:54,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:02:54,516 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:02:54,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,518 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,525 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 [2023-11-19 08:02:54,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-19 08:02:54,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:54,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:54,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:54,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:54,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:54,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:54,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:54,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:54,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:54,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,581 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,585 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 [2023-11-19 08:02:54,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-19 08:02:54,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:54,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:54,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:54,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:54,604 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 08:02:54,604 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 08:02:54,620 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:02:54,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-11-19 08:02:54,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,639 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-19 08:02:54,641 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 [2023-11-19 08:02:54,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:02:54,652 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:02:54,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:02:54,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:02:54,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:02:54,653 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:02:54,653 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:02:54,656 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:02:54,659 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 08:02:54,659 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-19 08:02:54,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:02:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:54,660 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:54,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-19 08:02:54,662 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:02:54,662 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 08:02:54,662 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:02:54,662 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-11-19 08:02:54,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-19 08:02:54,677 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 08:02:54,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:54,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 08:02:54,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:54,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:54,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 08:02:54,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:02:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:54,794 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-11-19 08:02:54,794 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:54,811 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 54 transitions. Complement of second has 6 states. [2023-11-19 08:02:54,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-19 08:02:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:54,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-19 08:02:54,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 10 letters. [2023-11-19 08:02:54,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:54,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 10 letters. [2023-11-19 08:02:54,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:54,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 20 letters. [2023-11-19 08:02:54,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:02:54,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2023-11-19 08:02:54,814 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:02:54,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-11-19 08:02:54,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:02:54,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:02:54,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:02:54,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:54,815 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:02:54,815 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:02:54,815 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:02:54,815 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-19 08:02:54,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:02:54,815 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:02:54,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 08:02:54,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:02:54 BoogieIcfgContainer [2023-11-19 08:02:54,824 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:02:54,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:02:54,825 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:02:54,825 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:02:54,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:44" (3/4) ... [2023-11-19 08:02:54,828 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:02:54,830 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:02:54,831 INFO L158 Benchmark]: Toolchain (without parser) took 10827.67ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 90.8MB in the beginning and 64.9MB in the end (delta: 25.9MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2023-11-19 08:02:54,831 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 134.2MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:54,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.09ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 80.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:02:54,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.79ms. Allocated memory is still 134.2MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:54,832 INFO L158 Benchmark]: Boogie Preprocessor took 28.12ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:02:54,833 INFO L158 Benchmark]: RCFGBuilder took 382.08ms. Allocated memory is still 134.2MB. Free memory was 78.7MB in the beginning and 69.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:02:54,833 INFO L158 Benchmark]: BuchiAutomizer took 10127.45ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 69.4MB in the beginning and 66.0MB in the end (delta: 3.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-19 08:02:54,833 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 172.0MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:02:54,836 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 134.2MB. Free memory is still 109.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.09ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 80.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.79ms. Allocated memory is still 134.2MB. Free memory was 80.8MB in the beginning and 79.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.12ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 78.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.08ms. Allocated memory is still 134.2MB. Free memory was 78.7MB in the beginning and 69.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 10127.45ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 69.4MB in the beginning and 66.0MB in the end (delta: 3.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 172.0MB. Free memory is still 64.9MB. 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 10 terminating modules (3 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function ((2 * y) + 1) and consists of 5 locations. One deterministic module has affine ranking function (((2 * m) + (-2 * y)) + 1) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function (((2 * m) + (-2 * y)) + 1) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.0s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 7.3s. Construction of modules took 0.3s. Büchi inclusion checks took 2.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 167 StatesRemovedByMinimization, 8 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 [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 163 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax172 hnf100 lsp50 ukn91 mio100 lsp100 div100 bol106 ite100 ukn100 eq146 hnf95 smp100 dnf149 smp86 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 08:02:54,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-19 08:02:55,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-19 08:02:55,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe63f1a-6ec1-4253-a0e0-1ddb5bade516/bin/uautomizer-verify-uCwYo4JHxu/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