./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/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_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:56:31,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:56:31,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:56:31,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:56:31,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:56:31,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:56:31,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:56:31,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:56:31,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:56:31,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:56:31,980 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:56:31,980 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:56:31,981 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:56:31,983 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:56:31,983 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:56:31,984 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:56:31,984 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:56:31,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:56:31,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:56:31,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:56:31,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:56:31,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:56:31,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:56:31,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:56:31,989 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:56:31,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:56:31,989 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:56:31,990 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:56:31,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:56:31,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:56:31,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:56:31,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:56:31,993 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:56:31,993 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_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2023-11-06 22:56:32,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:56:32,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:56:32,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:56:32,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:56:32,371 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:56:32,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-06 22:56:35,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:56:35,766 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:56:35,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-06 22:56:35,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/data/4bbbd90fd/758eb1d75d14471fa32871914eb47b18/FLAGc701665f7 [2023-11-06 22:56:35,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/data/4bbbd90fd/758eb1d75d14471fa32871914eb47b18 [2023-11-06 22:56:35,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:56:35,795 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:56:35,797 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:35,797 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:56:35,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:56:35,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53a56b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:35, skipping insertion in model container [2023-11-06 22:56:35,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:56:35" (1/1) ... [2023-11-06 22:56:35,827 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:56:35,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:35,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:56:35,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:56:36,012 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:56:36,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36 WrapperNode [2023-11-06 22:56:36,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:56:36,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:36,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:56:36,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:56:36,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,025 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,042 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-06 22:56:36,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:56:36,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:56:36,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:56:36,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:56:36,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,053 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:56:36,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:56:36,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:56:36,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:56:36,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (1/1) ... [2023-11-06 22:56:36,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:36,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:36,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:36,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:56:36,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:56:36,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:56:36,228 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:56:36,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:56:36,305 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:36,311 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:36,312 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:56:36,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36 BoogieIcfgContainer [2023-11-06 22:56:36,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:36,315 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:56:36,316 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:56:36,320 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:56:36,321 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:56:36,321 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:56:35" (1/3) ... [2023-11-06 22:56:36,322 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e2964d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:56:36, skipping insertion in model container [2023-11-06 22:56:36,322 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:56:36,323 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:56:36" (2/3) ... [2023-11-06 22:56:36,323 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e2964d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:56:36, skipping insertion in model container [2023-11-06 22:56:36,323 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:56:36,323 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36" (3/3) ... [2023-11-06 22:56:36,325 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-06 22:56:36,384 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:56:36,385 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:56:36,385 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:56:36,385 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:56:36,385 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:56:36,385 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:56:36,386 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:56:36,386 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:56:36,390 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) [2023-11-06 22:56:36,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 22:56:36,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:36,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:36,414 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:56:36,414 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:56:36,414 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:56:36,414 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) [2023-11-06 22:56:36,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 22:56:36,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:36,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:36,417 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:56:36,417 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:56:36,425 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18-2true [2023-11-06 22:56:36,426 INFO L750 eck$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 [2023-11-06 22:56:36,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:56:36,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:36,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780350419] [2023-11-06 22:56:36,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:36,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:36,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash 41516, now seen corresponding path program 1 times [2023-11-06 22:56:36,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:36,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955572374] [2023-11-06 22:56:36,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:36,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash 28700458, now seen corresponding path program 1 times [2023-11-06 22:56:36,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:36,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287521281] [2023-11-06 22:56:36,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:36,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:36,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:36,886 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:36,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:36,887 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:36,887 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:36,887 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:36,887 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:36,888 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:36,888 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:36,888 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-06 22:56:36,888 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:36,889 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:36,907 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:36,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:36,928 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:36,934 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:36,937 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,003 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:37,003 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:37,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:56:37,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:37,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,032 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:37,033 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: [] [2023-11-06 22:56:37,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-06 22:56:37,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:56:37,048 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:37,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,084 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:37,084 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: [] [2023-11-06 22:56:37,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:37,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:56:37,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:37,123 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: [] [2023-11-06 22:56:37,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,128 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:56:37,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:37,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:37,144 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: [] [2023-11-06 22:56:37,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-06 22:56:37,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:37,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:56:37,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,208 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:37,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:37,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:56:37,259 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:37,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,269 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:37,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:37,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:37,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:37,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:37,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:37,270 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:37,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-06 22:56:37,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:37,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:37,272 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:37,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:37,374 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:37,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,384 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:56:37,392 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 [2023-11-06 22:56:37,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:37,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:37,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:37,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:37,413 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:56:37,413 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:56:37,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:37,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,443 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:56:37,446 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 [2023-11-06 22:56:37,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:37,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:37,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:37,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:37,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:56:37,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:56:37,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:37,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-11-06 22:56:37,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:56:37,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:37,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:37,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:37,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:37,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:37,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:37,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:37,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:56:37,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:37,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,541 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:56:37,556 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 [2023-11-06 22:56:37,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:37,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:37,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:37,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:37,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:37,578 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:37,578 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:37,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:37,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:37,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,609 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,613 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 [2023-11-06 22:56:37,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:37,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:37,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:37,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:37,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:37,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:37,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:37,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:56:37,651 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:37,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:37,655 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:56:37,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:37,658 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:37,667 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:37,667 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:37,667 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:37,668 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 [] [2023-11-06 22:56:37,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:56:37,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-11-06 22:56:37,679 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:37,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:37,719 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:37,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:37,734 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:37,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:37,833 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 [2023-11-06 22:56:37,835 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) [2023-11-06 22:56:37,924 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. [2023-11-06 22:56:37,926 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 [2023-11-06 22:56:37,931 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) [2023-11-06 22:56:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2023-11-06 22:56:37,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-06 22:56:37,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:37,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-06 22:56:37,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:37,935 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-06 22:56:37,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:37,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 64 transitions. [2023-11-06 22:56:37,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 22:56:37,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 21 states and 30 transitions. [2023-11-06 22:56:37,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-06 22:56:37,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-06 22:56:37,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2023-11-06 22:56:37,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:37,945 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-06 22:56:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2023-11-06 22:56:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-06 22:56:37,972 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) [2023-11-06 22:56:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2023-11-06 22:56:37,973 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-06 22:56:37,974 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-06 22:56:37,974 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:56:37,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2023-11-06 22:56:37,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 22:56:37,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:37,975 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:37,976 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:37,976 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:56:37,976 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 [2023-11-06 22:56:37,976 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 [2023-11-06 22:56:37,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:37,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663475, now seen corresponding path program 1 times [2023-11-06 22:56:37,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:37,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243961138] [2023-11-06 22:56:37,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:37,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:38,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:38,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243961138] [2023-11-06 22:56:38,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243961138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:38,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:38,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:56:38,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068529440] [2023-11-06 22:56:38,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:38,033 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:56:38,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2023-11-06 22:56:38,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:38,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670832442] [2023-11-06 22:56:38,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:38,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:38,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:38,046 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:38,102 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:38,103 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:38,103 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:38,103 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:38,103 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:38,103 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,103 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:38,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:38,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-06 22:56:38,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:38,104 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:38,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,109 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,164 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:38,165 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:38,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,166 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:38,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:38,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:56:38,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:38,195 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: [] [2023-11-06 22:56:38,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,202 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:38,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:38,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-06 22:56:38,233 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:38,233 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: [] [2023-11-06 22:56:38,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,242 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-06 22:56:38,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:38,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:38,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,277 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-06 22:56:38,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:38,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:38,481 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:38,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,485 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:38,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:38,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:38,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:38,485 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:38,486 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,486 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:38,486 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:38,486 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-06 22:56:38,486 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:38,486 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:38,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:38,563 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:38,563 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:38,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,565 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-06 22:56:38,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,593 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 [2023-11-06 22:56:38,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:38,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:38,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:38,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:38,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:56:38,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:56:38,631 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:38,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,637 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-06 22:56:38,650 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 [2023-11-06 22:56:38,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:38,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:38,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:38,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:38,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:38,666 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:38,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:38,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:38,690 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:38,690 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:56:38,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:38,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:38,691 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:38,706 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:38,706 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:38,706 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:38,706 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 [] [2023-11-06 22:56:38,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-06 22:56:38,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:38,717 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:38,748 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:38,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:38,759 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:38,779 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:38,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:38,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:38,894 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 [2023-11-06 22:56:38,894 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) [2023-11-06 22:56:38,977 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. [2023-11-06 22:56:38,977 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 [2023-11-06 22:56:38,978 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) [2023-11-06 22:56:38,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2023-11-06 22:56:38,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-06 22:56:38,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:38,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-06 22:56:38,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:38,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-06 22:56:38,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:38,983 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2023-11-06 22:56:38,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-06 22:56:38,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2023-11-06 22:56:38,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-06 22:56:38,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-06 22:56:38,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2023-11-06 22:56:38,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:38,996 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2023-11-06 22:56:38,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2023-11-06 22:56:38,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2023-11-06 22:56:38,999 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) [2023-11-06 22:56:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2023-11-06 22:56:39,000 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2023-11-06 22:56:39,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:39,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:39,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:39,004 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) [2023-11-06 22:56:39,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:39,021 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2023-11-06 22:56:39,022 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-11-06 22:56:39,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:56:39,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2023-11-06 22:56:39,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-06 22:56:39,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-06 22:56:39,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2023-11-06 22:56:39,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:39,026 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-06 22:56:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2023-11-06 22:56:39,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-06 22:56:39,029 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) [2023-11-06 22:56:39,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2023-11-06 22:56:39,030 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-06 22:56:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:39,032 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-06 22:56:39,032 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:56:39,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2023-11-06 22:56:39,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-06 22:56:39,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:39,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:39,034 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:39,034 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:39,035 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 [2023-11-06 22:56:39,035 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 [2023-11-06 22:56:39,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:39,036 INFO L85 PathProgramCache]: Analyzing trace with hash 585785626, now seen corresponding path program 1 times [2023-11-06 22:56:39,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:39,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174369122] [2023-11-06 22:56:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,056 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:39,056 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:39,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1831936327, now seen corresponding path program 1 times [2023-11-06 22:56:39,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:39,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968593348] [2023-11-06 22:56:39,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:39,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:39,072 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:39,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2046492146, now seen corresponding path program 1 times [2023-11-06 22:56:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:39,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548366796] [2023-11-06 22:56:39,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:39,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548366796] [2023-11-06 22:56:39,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548366796] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:56:39,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395456948] [2023-11-06 22:56:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:39,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:56:39,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:39,300 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:56:39,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-06 22:56:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:39,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:56:39,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:39,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:39,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395456948] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:39,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:56:39,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-06 22:56:39,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219968806] [2023-11-06 22:56:39,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:39,755 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:39,755 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:39,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:39,756 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:39,756 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:39,756 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:39,756 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:39,756 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:39,756 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-06 22:56:39,756 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:39,756 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:39,759 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,773 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,790 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:39,862 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:39,862 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:39,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:39,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:39,871 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:39,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-06 22:56:39,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:39,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:39,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:39,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:39,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:39,921 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:39,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:39,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:39,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-06 22:56:40,028 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:40,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:40,031 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:40,032 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:40,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:40,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:40,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:40,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:40,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:40,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:40,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-06 22:56:40,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:40,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:40,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,153 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:40,153 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:40,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:40,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:40,154 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:40,160 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 [2023-11-06 22:56:40,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:40,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:40,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:40,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:40,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:40,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:40,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:40,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-06 22:56:40,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:40,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:40,202 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:40,202 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:56:40,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:40,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:40,203 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:40,207 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:40,207 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:40,207 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:40,207 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 [] [2023-11-06 22:56:40,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-06 22:56:40,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:40,216 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:40,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:40,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:40,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:40,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:40,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:40,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:40,313 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 [2023-11-06 22:56:40,313 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) [2023-11-06 22:56:40,352 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. [2023-11-06 22:56:40,353 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 [2023-11-06 22:56:40,353 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) [2023-11-06 22:56:40,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-11-06 22:56:40,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-06 22:56:40,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:40,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2023-11-06 22:56:40,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:40,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2023-11-06 22:56:40,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:40,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2023-11-06 22:56:40,358 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2023-11-06 22:56:40,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2023-11-06 22:56:40,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-11-06 22:56:40,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-06 22:56:40,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2023-11-06 22:56:40,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:40,361 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-11-06 22:56:40,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2023-11-06 22:56:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2023-11-06 22:56:40,365 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) [2023-11-06 22:56:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-06 22:56:40,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-06 22:56:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:40,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-06 22:56:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:56:40,368 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) [2023-11-06 22:56:40,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:40,828 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2023-11-06 22:56:40,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2023-11-06 22:56:40,831 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2023-11-06 22:56:40,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2023-11-06 22:56:40,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2023-11-06 22:56:40,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2023-11-06 22:56:40,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2023-11-06 22:56:40,834 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:40,834 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2023-11-06 22:56:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2023-11-06 22:56:40,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2023-11-06 22:56:40,840 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) [2023-11-06 22:56:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-06 22:56:40,841 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-06 22:56:40,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-06 22:56:40,843 INFO L428 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-06 22:56:40,843 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:56:40,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2023-11-06 22:56:40,844 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-06 22:56:40,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:40,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:40,845 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:40,845 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:40,845 INFO L748 eck$LassoCheckResult]: Stem: 792#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 793#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 801#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 797#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 798#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 853#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 852#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 851#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 794#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 789#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 790#L20-6 [2023-11-06 22:56:40,845 INFO L750 eck$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 [2023-11-06 22:56:40,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:40,846 INFO L85 PathProgramCache]: Analyzing trace with hash 979485188, now seen corresponding path program 1 times [2023-11-06 22:56:40,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:40,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740021538] [2023-11-06 22:56:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:40,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,862 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:40,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:40,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 1 times [2023-11-06 22:56:40,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:40,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044377388] [2023-11-06 22:56:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:40,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:40,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash 303194510, now seen corresponding path program 1 times [2023-11-06 22:56:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:40,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165640670] [2023-11-06 22:56:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:40,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:40,972 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:40,972 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:40,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:40,973 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:40,973 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:40,973 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:40,973 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:40,973 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:40,973 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-06 22:56:40,973 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:40,973 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:40,975 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,978 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,987 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:40,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:41,076 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:41,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,078 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:41,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:41,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-06 22:56:41,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:41,124 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: [] [2023-11-06 22:56:41,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,134 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:41,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-06 22:56:41,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,181 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:41,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:41,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-06 22:56:41,332 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:41,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,337 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:41,337 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:41,337 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:41,337 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:41,337 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:41,337 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,338 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:41,338 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:41,338 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-06 22:56:41,338 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:41,338 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:41,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,351 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,423 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:41,423 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:41,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,426 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,436 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 [2023-11-06 22:56:41,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-06 22:56:41,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:41,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:41,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:41,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:41,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:41,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:41,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:41,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:41,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,486 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,496 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 [2023-11-06 22:56:41,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:41,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:41,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:41,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:41,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:41,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:41,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:41,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-06 22:56:41,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:41,536 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-06 22:56:41,536 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:56:41,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,543 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:41,549 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:41,549 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:41,549 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 [] [2023-11-06 22:56:41,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-06 22:56:41,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,558 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:41,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:41,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:41,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:41,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:41,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:41,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:41,648 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 [2023-11-06 22:56:41,648 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) [2023-11-06 22:56:41,682 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. [2023-11-06 22:56:41,682 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 [2023-11-06 22:56:41,685 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) [2023-11-06 22:56:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-06 22:56:41,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2023-11-06 22:56:41,688 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:41,689 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2023-11-06 22:56:41,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:41,690 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2023-11-06 22:56:41,690 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:41,690 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2023-11-06 22:56:41,699 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-06 22:56:41,706 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2023-11-06 22:56:41,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2023-11-06 22:56:41,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-06 22:56:41,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2023-11-06 22:56:41,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:41,710 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2023-11-06 22:56:41,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2023-11-06 22:56:41,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2023-11-06 22:56:41,727 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) [2023-11-06 22:56:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2023-11-06 22:56:41,732 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-06 22:56:41,733 INFO L428 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-06 22:56:41,733 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:56:41,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2023-11-06 22:56:41,734 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-06 22:56:41,736 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:41,736 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:41,737 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:41,737 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-06 22:56:41,737 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 [2023-11-06 22:56:41,738 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 [2023-11-06 22:56:41,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:41,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1318299976, now seen corresponding path program 2 times [2023-11-06 22:56:41,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:41,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671333018] [2023-11-06 22:56:41,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:41,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:41,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2023-11-06 22:56:41,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:41,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743379783] [2023-11-06 22:56:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:41,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,786 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:41,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash -293611421, now seen corresponding path program 3 times [2023-11-06 22:56:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67332544] [2023-11-06 22:56:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:41,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:41,819 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:41,854 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:41,854 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:41,854 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:41,854 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:41,854 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:41,855 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,855 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:41,855 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:41,855 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-06 22:56:41,855 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:41,855 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:41,856 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:41,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:41,910 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:41,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,911 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,920 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:41,920 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:41,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-06 22:56:41,947 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:41,948 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: [] [2023-11-06 22:56:41,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:41,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:41,959 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:41,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:41,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:41,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-06 22:56:42,000 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:42,000 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: [] [2023-11-06 22:56:42,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,005 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:42,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:42,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-06 22:56:42,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,036 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:42,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:42,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-06 22:56:42,197 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:42,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-06 22:56:42,201 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:42,201 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:42,201 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:42,201 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:42,201 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:42,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:42,201 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:42,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-06 22:56:42,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:42,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:42,203 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:42,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:42,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:42,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:42,225 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:42,263 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:42,263 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:42,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,265 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,278 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 [2023-11-06 22:56:42,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:42,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:42,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:42,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:42,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:56:42,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:56:42,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-06 22:56:42,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:42,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2023-11-06 22:56:42,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,309 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,320 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 [2023-11-06 22:56:42,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:42,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:42,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:42,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:42,333 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:42,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:42,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:42,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-06 22:56:42,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,371 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:42,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-11-06 22:56:42,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,381 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,385 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 [2023-11-06 22:56:42,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:42,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:42,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:42,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:42,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:42,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:42,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:42,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-06 22:56:42,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:42,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,429 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,433 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 [2023-11-06 22:56:42,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-06 22:56:42,444 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:42,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:42,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:42,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:42,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:42,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:42,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:42,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:42,459 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:42,459 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-06 22:56:42,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:42,464 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:42,472 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:42,472 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:42,472 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 [] [2023-11-06 22:56:42,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-06 22:56:42,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:42,485 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:42,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,545 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:42,616 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 [2023-11-06 22:56:42,616 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) [2023-11-06 22:56:42,670 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. [2023-11-06 22:56:42,671 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 [2023-11-06 22:56:42,673 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) [2023-11-06 22:56:42,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-06 22:56:42,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-06 22:56:42,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:42,676 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:56:42,688 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,731 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:42,790 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 [2023-11-06 22:56:42,790 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) [2023-11-06 22:56:42,830 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. [2023-11-06 22:56:42,831 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 [2023-11-06 22:56:42,835 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) [2023-11-06 22:56:42,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-06 22:56:42,836 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-06 22:56:42,836 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:42,836 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:56:42,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,896 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:42,958 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 [2023-11-06 22:56:42,958 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) [2023-11-06 22:56:43,011 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. [2023-11-06 22:56:43,011 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 [2023-11-06 22:56:43,013 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) [2023-11-06 22:56:43,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-06 22:56:43,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-06 22:56:43,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:43,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 20 letters. Loop has 3 letters. [2023-11-06 22:56:43,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:43,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 6 letters. [2023-11-06 22:56:43,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:43,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 295 transitions. [2023-11-06 22:56:43,020 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 40 [2023-11-06 22:56:43,022 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 155 states and 195 transitions. [2023-11-06 22:56:43,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2023-11-06 22:56:43,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2023-11-06 22:56:43,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 195 transitions. [2023-11-06 22:56:43,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:43,025 INFO L218 hiAutomatonCegarLoop]: Abstraction has 155 states and 195 transitions. [2023-11-06 22:56:43,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 195 transitions. [2023-11-06 22:56:43,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 97. [2023-11-06 22:56:43,047 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) [2023-11-06 22:56:43,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2023-11-06 22:56:43,049 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-06 22:56:43,049 INFO L428 stractBuchiCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-06 22:56:43,050 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-06 22:56:43,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 126 transitions. [2023-11-06 22:56:43,051 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2023-11-06 22:56:43,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:43,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:43,052 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:43,052 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:43,053 INFO L748 eck$LassoCheckResult]: Stem: 2055#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2062#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2089#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2086#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2088#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2087#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2085#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2070#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2067#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2068#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2071#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2135#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2134#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2049#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2050#L20-1 [2023-11-06 22:56:43,053 INFO L750 eck$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 [2023-11-06 22:56:43,053 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:43,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1293105010, now seen corresponding path program 2 times [2023-11-06 22:56:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:43,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138487622] [2023-11-06 22:56:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:43,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:43,095 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:56:43,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:56:43,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138487622] [2023-11-06 22:56:43,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138487622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:43,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:43,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155364201] [2023-11-06 22:56:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:43,097 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-06 22:56:43,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:43,098 INFO L85 PathProgramCache]: Analyzing trace with hash 627213861, now seen corresponding path program 2 times [2023-11-06 22:56:43,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:43,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889542286] [2023-11-06 22:56:43,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:43,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:43,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:43,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:43,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:43,228 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:43,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:43,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:43,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:43,229 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:43,229 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,229 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:43,230 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:43,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-06 22:56:43,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:43,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:43,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,281 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,442 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:43,442 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:43,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:43,443 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:43,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:43,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:43,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-06 22:56:43,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:43,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:43,488 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:43,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:43,496 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:43,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-06 22:56:43,720 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:43,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:43,729 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:43,730 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:43,730 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:43,730 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:43,730 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:43,730 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,730 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:43,730 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:43,730 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-06 22:56:43,730 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:43,730 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:43,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,766 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,768 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,771 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,777 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,780 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:43,915 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:43,915 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:43,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:43,920 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:43,923 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 [2023-11-06 22:56:43,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:43,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:43,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:43,936 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-06 22:56:43,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:43,939 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-06 22:56:43,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:43,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-06 22:56:43,955 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:43,961 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:43,961 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:56:43,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:43,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:43,962 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:43,969 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:43,969 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:43,969 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:43,970 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 [] [2023-11-06 22:56:43,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-06 22:56:43,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:43,979 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:43,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:44,074 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 [2023-11-06 22:56:44,074 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) [2023-11-06 22:56:44,094 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. [2023-11-06 22:56:44,095 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 [2023-11-06 22:56:44,095 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) [2023-11-06 22:56:44,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-06 22:56:44,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-06 22:56:44,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:44,096 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:56:44,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:44,196 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 [2023-11-06 22:56:44,196 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) [2023-11-06 22:56:44,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:44,227 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. [2023-11-06 22:56:44,228 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 [2023-11-06 22:56:44,228 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) [2023-11-06 22:56:44,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2023-11-06 22:56:44,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-06 22:56:44,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:44,229 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-06 22:56:44,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:44,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:44,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:44,326 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 [2023-11-06 22:56:44,326 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) [2023-11-06 22:56:44,349 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. [2023-11-06 22:56:44,350 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 [2023-11-06 22:56:44,351 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) [2023-11-06 22:56:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2023-11-06 22:56:44,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-06 22:56:44,351 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:44,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-06 22:56:44,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:44,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 14 letters. [2023-11-06 22:56:44,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:44,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 273 transitions. [2023-11-06 22:56:44,356 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2023-11-06 22:56:44,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 82 states and 100 transitions. [2023-11-06 22:56:44,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-06 22:56:44,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-06 22:56:44,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2023-11-06 22:56:44,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:44,359 INFO L218 hiAutomatonCegarLoop]: Abstraction has 82 states and 100 transitions. [2023-11-06 22:56:44,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2023-11-06 22:56:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 26. [2023-11-06 22:56:44,361 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) [2023-11-06 22:56:44,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-06 22:56:44,361 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-06 22:56:44,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:56:44,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:44,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:44,362 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) [2023-11-06 22:56:44,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:44,374 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-06 22:56:44,374 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2023-11-06 22:56:44,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:56:44,375 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 22 transitions. [2023-11-06 22:56:44,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-06 22:56:44,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-06 22:56:44,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2023-11-06 22:56:44,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-06 22:56:44,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-06 22:56:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2023-11-06 22:56:44,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-06 22:56:44,377 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) [2023-11-06 22:56:44,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-11-06 22:56:44,377 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-06 22:56:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:44,378 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-06 22:56:44,378 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-06 22:56:44,378 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2023-11-06 22:56:44,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-06 22:56:44,379 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:56:44,379 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:56:44,379 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:44,379 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:44,380 INFO L748 eck$LassoCheckResult]: Stem: 2869#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2870#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2861#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2862#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2864#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2865#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2867#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2868#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2871#L20-1 [2023-11-06 22:56:44,380 INFO L750 eck$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 [2023-11-06 22:56:44,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,380 INFO L85 PathProgramCache]: Analyzing trace with hash 295990974, now seen corresponding path program 1 times [2023-11-06 22:56:44,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:44,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946143656] [2023-11-06 22:56:44,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:44,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:44,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash -2074549754, now seen corresponding path program 1 times [2023-11-06 22:56:44,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:44,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872784641] [2023-11-06 22:56:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:44,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:44,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:44,401 INFO L85 PathProgramCache]: Analyzing trace with hash 809095299, now seen corresponding path program 3 times [2023-11-06 22:56:44,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:56:44,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725127649] [2023-11-06 22:56:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:44,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:56:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:56:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:56:44,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:56:44,556 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:44,556 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:44,556 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:44,556 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:44,556 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:56:44,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:44,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:44,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:44,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-06 22:56:44,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:44,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:44,558 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,598 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,605 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,607 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,731 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:44,731 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:56:44,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:44,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:44,736 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:44,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:44,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:44,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-06 22:56:44,779 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:56:44,780 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: [] [2023-11-06 22:56:44,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:44,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:44,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:44,784 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:44,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:56:44,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:44,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-06 22:56:44,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:44,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:44,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:44,818 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:44,822 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:56:44,822 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:56:44,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-06 22:56:44,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:56:44,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:44,915 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:56:44,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:56:44,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:56:44,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:56:44,915 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:56:44,915 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:44,915 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:56:44,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:56:44,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-06 22:56:44,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:56:44,916 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:56:44,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,966 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:44,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:56:45,099 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:56:45,099 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:56:45,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:45,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:45,100 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:45,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-06 22:56:45,105 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 [2023-11-06 22:56:45,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:45,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:45,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:45,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:45,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:45,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:45,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:45,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:45,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:45,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:45,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:45,136 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:45,139 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 [2023-11-06 22:56:45,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:45,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:45,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:45,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:45,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:56:45,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:56:45,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-06 22:56:45,179 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:56:45,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:45,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:45,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:45,184 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:45,188 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 [2023-11-06 22:56:45,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:56:45,200 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:56:45,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:56:45,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:56:45,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:56:45,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-06 22:56:45,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:56:45,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:56:45,204 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:56:45,208 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-06 22:56:45,208 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-06 22:56:45,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:56:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:56:45,209 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:56:45,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-06 22:56:45,212 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:56:45,212 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-06 22:56:45,212 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:56:45,212 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 [] [2023-11-06 22:56:45,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-11-06 22:56:45,215 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-06 22:56:45,226 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:45,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:45,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:45,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:45,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:56:45,311 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 [2023-11-06 22:56:45,311 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) [2023-11-06 22:56:45,328 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. [2023-11-06 22:56:45,328 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 [2023-11-06 22:56:45,329 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) [2023-11-06 22:56:45,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-06 22:56:45,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 10 letters. [2023-11-06 22:56:45,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:45,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 10 letters. [2023-11-06 22:56:45,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:45,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 20 letters. [2023-11-06 22:56:45,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:56:45,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2023-11-06 22:56:45,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:56:45,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-11-06 22:56:45,331 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:56:45,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:56:45,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:56:45,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:56:45,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:56:45,332 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:56:45,332 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:56:45,332 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-06 22:56:45,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:56:45,332 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:56:45,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:56:45,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:56:45 BoogieIcfgContainer [2023-11-06 22:56:45,340 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:56:45,341 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:56:45,341 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:56:45,341 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:56:45,342 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:36" (3/4) ... [2023-11-06 22:56:45,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:56:45,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:56:45,345 INFO L158 Benchmark]: Toolchain (without parser) took 9550.49ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 98.6MB in the beginning and 75.5MB in the end (delta: 23.1MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,346 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory was 59.5MB in the beginning and 59.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:45,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.10ms. Allocated memory is still 144.7MB. Free memory was 98.1MB in the beginning and 88.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.42ms. Allocated memory is still 144.7MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,347 INFO L158 Benchmark]: Boogie Preprocessor took 19.05ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 983.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,347 INFO L158 Benchmark]: RCFGBuilder took 250.78ms. Allocated memory is still 144.7MB. Free memory was 86.1MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,348 INFO L158 Benchmark]: BuchiAutomizer took 9024.69ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-11-06 22:56:45,348 INFO L158 Benchmark]: Witness Printer took 4.09ms. Allocated memory is still 176.2MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:56:45,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 107.0MB. Free memory was 59.5MB in the beginning and 59.3MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.10ms. Allocated memory is still 144.7MB. Free memory was 98.1MB in the beginning and 88.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.42ms. Allocated memory is still 144.7MB. Free memory was 88.8MB in the beginning and 87.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.05ms. Allocated memory is still 144.7MB. Free memory was 87.1MB in the beginning and 86.1MB in the end (delta: 983.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.78ms. Allocated memory is still 144.7MB. Free memory was 86.1MB in the beginning and 77.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9024.69ms. Allocated memory was 144.7MB in the beginning and 176.2MB in the end (delta: 31.5MB). Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Witness Printer took 4.09ms. Allocated memory is still 176.2MB. Free memory is still 75.5MB. 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 8.9s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 6.4s. Construction of modules took 0.2s. Büchi inclusion checks took 2.0s. 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, 0.3s 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: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:56:45,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:45,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-06 22:56:45,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7b4bd05-317a-4fd0-be8d-05430a040be7/bin/uautomizer-verify-WvqO1wxjHP/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