./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/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_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:28:25,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:28:25,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-23 22:28:25,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:28:25,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:28:25,349 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:28:25,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:28:25,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:28:25,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:28:25,359 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:28:25,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:28:25,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:28:25,361 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:28:25,364 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-23 22:28:25,364 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-23 22:28:25,365 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-23 22:28:25,366 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-23 22:28:25,368 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-23 22:28:25,369 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-23 22:28:25,369 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:28:25,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-23 22:28:25,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:28:25,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:28:25,372 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-23 22:28:25,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-23 22:28:25,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-23 22:28:25,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:28:25,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:28:25,375 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-23 22:28:25,376 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:28:25,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:28:25,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:28:25,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:28:25,378 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:28:25,379 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-23 22:28:25,380 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_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2023-11-23 22:28:25,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:28:25,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:28:25,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:28:25,768 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:28:25,769 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:28:25,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-23 22:28:29,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:28:29,349 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:28:29,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-23 22:28:29,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/data/d5ea44010/f6f8cb85c4af41bdbe23c65deafe3f68/FLAG206025cf9 [2023-11-23 22:28:29,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/data/d5ea44010/f6f8cb85c4af41bdbe23c65deafe3f68 [2023-11-23 22:28:29,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:28:29,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:28:29,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:29,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:28:29,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:28:29,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebff67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29, skipping insertion in model container [2023-11-23 22:28:29,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,410 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:28:29,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:29,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:28:29,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:29,588 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:28:29,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29 WrapperNode [2023-11-23 22:28:29,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:29,591 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:29,591 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:28:29,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:28:29,598 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,623 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-23 22:28:29,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:29,624 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:28:29,624 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:28:29,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:28:29,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,637 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,644 INFO L189 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-23 22:28:29,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,669 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:28:29,670 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:28:29,671 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:28:29,671 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:28:29,672 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (1/1) ... [2023-11-23 22:28:29,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:29,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:29,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:29,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-23 22:28:29,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:28:29,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:28:29,856 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:28:29,860 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:28:29,945 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:28:29,955 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:28:29,956 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:28:29,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:29 BoogieIcfgContainer [2023-11-23 22:28:29,958 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:28:29,959 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-23 22:28:29,959 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-23 22:28:29,963 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-23 22:28:29,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:29,964 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 10:28:29" (1/3) ... [2023-11-23 22:28:29,965 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189ba1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:28:29, skipping insertion in model container [2023-11-23 22:28:29,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:29,966 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:29" (2/3) ... [2023-11-23 22:28:29,966 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189ba1ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 10:28:29, skipping insertion in model container [2023-11-23 22:28:29,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-23 22:28:29,967 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:29" (3/3) ... [2023-11-23 22:28:29,968 INFO L332 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2023-11-23 22:28:30,033 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-23 22:28:30,034 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-23 22:28:30,034 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-23 22:28:30,034 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-23 22:28:30,035 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-23 22:28:30,035 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-23 22:28:30,035 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-23 22:28:30,035 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-23 22:28:30,040 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) [2023-11-23 22:28:30,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:28:30,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:30,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:30,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:28:30,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 22:28:30,065 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-23 22:28:30,066 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) [2023-11-23 22:28:30,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:28:30,067 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:30,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:30,068 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-23 22:28:30,068 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 22:28:30,076 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 7#L18-2true [2023-11-23 22:28:30,076 INFO L750 eck$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 [2023-11-23 22:28:30,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-23 22:28:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:30,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457529500] [2023-11-23 22:28:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:30,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,190 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:30,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:30,194 INFO L85 PathProgramCache]: Analyzing trace with hash 41516, now seen corresponding path program 1 times [2023-11-23 22:28:30,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:30,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795487026] [2023-11-23 22:28:30,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:30,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:30,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:30,217 INFO L85 PathProgramCache]: Analyzing trace with hash 28700458, now seen corresponding path program 1 times [2023-11-23 22:28:30,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:30,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754064758] [2023-11-23 22:28:30,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:30,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:30,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:30,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:30,316 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:30,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:30,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:30,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:30,317 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:30,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:30,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:30,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-23 22:28:30,318 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:30,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:30,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,362 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:30,442 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:30,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-23 22:28:30,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:30,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,511 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:30,511 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: [] [2023-11-23 22:28:30,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:30,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-23 22:28:30,557 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:30,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,586 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:30,586 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: [] [2023-11-23 22:28:30,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:30,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:30,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-23 22:28:30,652 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:30,652 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: [] [2023-11-23 22:28:30,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:30,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-23 22:28:30,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:30,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,688 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:30,689 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: [] [2023-11-23 22:28:30,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-23 22:28:30,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-23 22:28:30,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:30,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-23 22:28:30,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,746 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-23 22:28:30,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:30,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:30,821 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:30,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:30,834 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:30,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:30,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:30,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:30,835 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:30,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,835 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:30,835 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:30,835 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration1_Loop [2023-11-23 22:28:30,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:30,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:30,857 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,866 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,870 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,873 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:30,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:30,930 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:30,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:30,933 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:30,946 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 [2023-11-23 22:28:30,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:30,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:30,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:30,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:30,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-23 22:28:30,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:28:30,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:28:30,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:31,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,003 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-23 22:28:31,008 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 [2023-11-23 22:28:31,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:31,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:31,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:31,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:31,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:28:31,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:28:31,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:31,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,066 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,077 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 [2023-11-23 22:28:31,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-23 22:28:31,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:31,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:31,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:31,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:31,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:31,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:31,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:31,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:31,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,118 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-23 22:28:31,121 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 [2023-11-23 22:28:31,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:31,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:31,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:31,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:31,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:31,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:31,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:31,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:31,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,177 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-23 22:28:31,185 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 [2023-11-23 22:28:31,198 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:31,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:31,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:31,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:31,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:31,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:31,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:31,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:31,229 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:31,229 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:28:31,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,267 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,275 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:31,275 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:31,275 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:31,276 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 [] [2023-11-23 22:28:31,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-23 22:28:31,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,295 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:31,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:31,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:31,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:31,357 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:31,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:31,447 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 [2023-11-23 22:28:31,450 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) [2023-11-23 22:28:31,541 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. [2023-11-23 22:28:31,543 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 [2023-11-23 22:28:31,549 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) [2023-11-23 22:28:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2023-11-23 22:28:31,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 3 letters. [2023-11-23 22:28:31,553 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:31,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 5 letters. Loop has 3 letters. [2023-11-23 22:28:31,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:31,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 2 letters. Loop has 6 letters. [2023-11-23 22:28:31,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:31,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 64 transitions. [2023-11-23 22:28:31,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:28:31,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 21 states and 30 transitions. [2023-11-23 22:28:31,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-11-23 22:28:31,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2023-11-23 22:28:31,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2023-11-23 22:28:31,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:31,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-23 22:28:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2023-11-23 22:28:31,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-23 22:28:31,599 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) [2023-11-23 22:28:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2023-11-23 22:28:31,601 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-23 22:28:31,601 INFO L428 stractBuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2023-11-23 22:28:31,601 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-23 22:28:31,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2023-11-23 22:28:31,603 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:28:31,603 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:31,603 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:31,604 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:31,604 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 22:28:31,604 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 [2023-11-23 22:28:31,605 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 [2023-11-23 22:28:31,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1810663475, now seen corresponding path program 1 times [2023-11-23 22:28:31,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:31,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508624354] [2023-11-23 22:28:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:31,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:31,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:31,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508624354] [2023-11-23 22:28:31,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508624354] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:31,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:31,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:31,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132034503] [2023-11-23 22:28:31,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:31,668 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 22:28:31,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:31,668 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 1 times [2023-11-23 22:28:31,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:31,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630432489] [2023-11-23 22:28:31,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:31,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:31,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:31,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:31,779 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:31,779 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:31,779 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:31,780 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:31,780 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:31,780 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,780 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:31,780 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:31,780 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-23 22:28:31,780 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:31,781 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:31,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:31,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:31,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:31,801 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:31,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:31,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:31,865 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:31,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,869 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-23 22:28:31,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:31,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:31,910 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:31,911 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: [] [2023-11-23 22:28:31,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:31,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:31,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:31,939 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:31,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-11-23 22:28:31,954 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:31,954 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:31,977 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:31,977 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: [] [2023-11-23 22:28:31,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-11-23 22:28:32,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:32,001 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:32,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-11-23 22:28:32,003 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:32,003 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:32,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-11-23 22:28:32,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:32,063 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:32,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-11-23 22:28:32,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:32,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:32,266 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:32,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:32,270 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:32,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:32,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:32,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:32,271 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:32,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:32,271 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:32,271 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration2_Loop [2023-11-23 22:28:32,271 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:32,271 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:32,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:32,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:32,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:32,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:32,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:32,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:32,367 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:32,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:32,369 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:32,377 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 [2023-11-23 22:28:32,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-11-23 22:28:32,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:32,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:32,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:32,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:32,397 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:28:32,397 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:28:32,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:32,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:32,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:32,431 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:32,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-11-23 22:28:32,433 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 [2023-11-23 22:28:32,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:32,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:32,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:32,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:32,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:32,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:32,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:32,464 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:32,470 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:32,470 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:28:32,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:32,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:32,484 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:32,504 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:32,504 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:32,504 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:32,504 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 [] [2023-11-23 22:28:32,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-11-23 22:28:32,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:32,538 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:32,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:32,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:32,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:32,598 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:28:32,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:32,749 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 [2023-11-23 22:28:32,750 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) [2023-11-23 22:28:32,846 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. [2023-11-23 22:28:32,846 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 [2023-11-23 22:28:32,847 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) [2023-11-23 22:28:32,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2023-11-23 22:28:32,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2023-11-23 22:28:32,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:32,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2023-11-23 22:28:32,851 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:32,851 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2023-11-23 22:28:32,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:32,852 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 63 transitions. [2023-11-23 22:28:32,861 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-23 22:28:32,869 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 33 states and 46 transitions. [2023-11-23 22:28:32,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2023-11-23 22:28:32,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2023-11-23 22:28:32,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 46 transitions. [2023-11-23 22:28:32,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:32,870 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33 states and 46 transitions. [2023-11-23 22:28:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 46 transitions. [2023-11-23 22:28:32,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2023-11-23 22:28:32,874 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) [2023-11-23 22:28:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 40 transitions. [2023-11-23 22:28:32,878 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 40 transitions. [2023-11-23 22:28:32,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:32,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:32,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:32,882 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) [2023-11-23 22:28:32,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:32,901 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions. [2023-11-23 22:28:32,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2023-11-23 22:28:32,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-23 22:28:32,905 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 40 transitions. [2023-11-23 22:28:32,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2023-11-23 22:28:32,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2023-11-23 22:28:32,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2023-11-23 22:28:32,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:32,906 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 40 transitions. [2023-11-23 22:28:32,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2023-11-23 22:28:32,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-23 22:28:32,912 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) [2023-11-23 22:28:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2023-11-23 22:28:32,914 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-23 22:28:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:32,917 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2023-11-23 22:28:32,917 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-23 22:28:32,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2023-11-23 22:28:32,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-23 22:28:32,920 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:32,920 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:32,921 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:32,921 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:32,921 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 [2023-11-23 22:28:32,922 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 [2023-11-23 22:28:32,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:32,946 INFO L85 PathProgramCache]: Analyzing trace with hash 585785626, now seen corresponding path program 1 times [2023-11-23 22:28:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:32,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910300012] [2023-11-23 22:28:32,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:32,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:32,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:32,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:32,972 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:32,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:32,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:32,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1831936327, now seen corresponding path program 1 times [2023-11-23 22:28:32,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:32,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70387092] [2023-11-23 22:28:32,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:32,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:33,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-11-23 22:28:33,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:33,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:33,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:33,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2046492146, now seen corresponding path program 1 times [2023-11-23 22:28:33,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:33,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891446846] [2023-11-23 22:28:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:33,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:33,254 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:33,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:33,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891446846] [2023-11-23 22:28:33,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891446846] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:28:33,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465583550] [2023-11-23 22:28:33,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:33,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:28:33,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:33,261 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:28:33,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 22:28:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:33,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:28:33,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:33,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 22:28:33,604 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465583550] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 22:28:33,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 22:28:33,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-23 22:28:33,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260461126] [2023-11-23 22:28:33,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 22:28:33,675 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:33,675 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:33,675 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:33,676 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:33,676 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:33,676 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:33,676 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:33,676 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:33,676 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-23 22:28:33,676 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:33,676 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:33,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,696 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,699 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,702 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,710 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,799 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:33,799 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:33,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:33,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:33,805 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:33,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-11-23 22:28:33,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:33,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:33,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:33,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:33,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:33,840 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:33,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-11-23 22:28:33,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:33,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:33,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:33,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2023-11-23 22:28:33,935 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:33,935 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:33,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:33,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:33,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:33,936 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:33,936 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:33,936 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:33,936 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration3_Loop [2023-11-23 22:28:33,936 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:33,936 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:33,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,944 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,949 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,952 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,955 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,963 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:33,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,038 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:34,038 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:34,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:34,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:34,039 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:34,050 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 [2023-11-23 22:28:34,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-11-23 22:28:34,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:34,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:34,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:34,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:34,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:34,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:34,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:34,080 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:34,084 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:34,084 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:28:34,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:34,086 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:34,088 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:34,088 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:34,088 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:34,089 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 [] [2023-11-23 22:28:34,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-11-23 22:28:34,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:34,113 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:34,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:34,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:34,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:34,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:34,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:34,200 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 [2023-11-23 22:28:34,200 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) [2023-11-23 22:28:34,223 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. [2023-11-23 22:28:34,224 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 [2023-11-23 22:28:34,225 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) [2023-11-23 22:28:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2023-11-23 22:28:34,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 7 letters. [2023-11-23 22:28:34,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:34,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 16 letters. Loop has 7 letters. [2023-11-23 22:28:34,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:34,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 9 letters. Loop has 14 letters. [2023-11-23 22:28:34,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:34,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 128 transitions. [2023-11-23 22:28:34,230 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2023-11-23 22:28:34,231 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 68 states and 93 transitions. [2023-11-23 22:28:34,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2023-11-23 22:28:34,231 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-11-23 22:28:34,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 93 transitions. [2023-11-23 22:28:34,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:34,232 INFO L218 hiAutomatonCegarLoop]: Abstraction has 68 states and 93 transitions. [2023-11-23 22:28:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 93 transitions. [2023-11-23 22:28:34,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2023-11-23 22:28:34,237 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) [2023-11-23 22:28:34,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2023-11-23 22:28:34,237 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 80 transitions. [2023-11-23 22:28:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:34,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 22:28:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-11-23 22:28:34,239 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 15 states, 15 states have (on average 2.533333333333333) internal successors, (38), 15 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:34,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:34,710 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2023-11-23 22:28:34,710 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 143 transitions. [2023-11-23 22:28:34,712 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 38 [2023-11-23 22:28:34,714 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 97 states and 122 transitions. [2023-11-23 22:28:34,714 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2023-11-23 22:28:34,715 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2023-11-23 22:28:34,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 122 transitions. [2023-11-23 22:28:34,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:34,715 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 122 transitions. [2023-11-23 22:28:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 122 transitions. [2023-11-23 22:28:34,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2023-11-23 22:28:34,722 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) [2023-11-23 22:28:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-23 22:28:34,723 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-23 22:28:34,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 22:28:34,724 INFO L428 stractBuchiCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-23 22:28:34,724 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-23 22:28:34,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 78 states and 102 transitions. [2023-11-23 22:28:34,726 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-23 22:28:34,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:34,726 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:34,727 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:34,727 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:34,727 INFO L748 eck$LassoCheckResult]: Stem: 792#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 793#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 801#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 797#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 798#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 853#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 852#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 851#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 794#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 789#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 790#L20-6 [2023-11-23 22:28:34,727 INFO L750 eck$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 [2023-11-23 22:28:34,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 979485188, now seen corresponding path program 1 times [2023-11-23 22:28:34,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:34,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865996690] [2023-11-23 22:28:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:34,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:34,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1343300367, now seen corresponding path program 1 times [2023-11-23 22:28:34,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:34,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223024454] [2023-11-23 22:28:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:34,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:34,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:34,758 INFO L85 PathProgramCache]: Analyzing trace with hash 303194510, now seen corresponding path program 1 times [2023-11-23 22:28:34,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:34,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385521978] [2023-11-23 22:28:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:34,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:34,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:34,779 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:34,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:34,873 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:34,873 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:34,874 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:34,874 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:34,874 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:34,874 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:34,874 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:34,874 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:34,874 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-23 22:28:34,874 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:34,874 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:34,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,894 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,897 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:34,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:34,970 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:34,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:34,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:34,971 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:34,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:34,975 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:34,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-11-23 22:28:34,996 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:34,996 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: [] [2023-11-23 22:28:35,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,021 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:35,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-11-23 22:28:35,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,073 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:35,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-11-23 22:28:35,243 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:35,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-11-23 22:28:35,247 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:35,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:35,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:35,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:35,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:35,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:35,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:35,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration4_Loop [2023-11-23 22:28:35,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:35,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:35,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,275 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,343 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:35,343 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:35,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,345 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,377 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 [2023-11-23 22:28:35,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-11-23 22:28:35,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:35,390 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:35,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:35,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:35,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:35,391 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:35,391 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:35,394 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:35,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,432 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-11-23 22:28:35,437 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 [2023-11-23 22:28:35,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:35,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:35,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:35,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:35,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:35,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:35,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:35,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:35,461 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-11-23 22:28:35,461 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:28:35,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,465 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,474 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:35,474 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:35,474 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:35,474 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 [] [2023-11-23 22:28:35,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-11-23 22:28:35,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,498 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:35,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:35,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:35,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:35,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:35,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:35,585 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 [2023-11-23 22:28:35,585 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) [2023-11-23 22:28:35,608 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. [2023-11-23 22:28:35,609 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 [2023-11-23 22:28:35,610 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) [2023-11-23 22:28:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-23 22:28:35,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 7 letters. [2023-11-23 22:28:35,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:35,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 17 letters. Loop has 7 letters. [2023-11-23 22:28:35,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:35,611 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 10 letters. Loop has 14 letters. [2023-11-23 22:28:35,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:35,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 242 transitions. [2023-11-23 22:28:35,614 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-23 22:28:35,617 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 148 states and 194 transitions. [2023-11-23 22:28:35,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 67 [2023-11-23 22:28:35,617 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2023-11-23 22:28:35,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 194 transitions. [2023-11-23 22:28:35,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:35,618 INFO L218 hiAutomatonCegarLoop]: Abstraction has 148 states and 194 transitions. [2023-11-23 22:28:35,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 194 transitions. [2023-11-23 22:28:35,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2023-11-23 22:28:35,626 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) [2023-11-23 22:28:35,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 181 transitions. [2023-11-23 22:28:35,628 INFO L240 hiAutomatonCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-23 22:28:35,628 INFO L428 stractBuchiCegarLoop]: Abstraction has 135 states and 181 transitions. [2023-11-23 22:28:35,628 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-23 22:28:35,628 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 135 states and 181 transitions. [2023-11-23 22:28:35,630 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 33 [2023-11-23 22:28:35,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:35,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:35,631 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:35,631 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-23 22:28:35,631 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 [2023-11-23 22:28:35,631 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 [2023-11-23 22:28:35,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:35,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1318299976, now seen corresponding path program 2 times [2023-11-23 22:28:35,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:35,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107016897] [2023-11-23 22:28:35,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:35,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,641 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:35,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:35,650 INFO L85 PathProgramCache]: Analyzing trace with hash 48762, now seen corresponding path program 2 times [2023-11-23 22:28:35,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:35,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905616295] [2023-11-23 22:28:35,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:35,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:35,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:35,658 INFO L85 PathProgramCache]: Analyzing trace with hash -293611421, now seen corresponding path program 3 times [2023-11-23 22:28:35,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:35,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522455763] [2023-11-23 22:28:35,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:35,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,668 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:35,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:35,712 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:35,713 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:35,713 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:35,713 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:35,713 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:35,713 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,713 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:35,713 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:35,714 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-23 22:28:35,714 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:35,714 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:35,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:35,772 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:35,772 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:35,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,777 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,779 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:35,779 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-11-23 22:28:35,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:35,813 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: [] [2023-11-23 22:28:35,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,835 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,837 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:35,837 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-11-23 22:28:35,864 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:35,865 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: [] [2023-11-23 22:28:35,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,890 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:35,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-11-23 22:28:35,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:35,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:35,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:35,938 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:35,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:35,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:35,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-11-23 22:28:36,109 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:36,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-11-23 22:28:36,112 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:36,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:36,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:36,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:36,113 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:36,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,113 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:36,113 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:36,113 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration5_Loop [2023-11-23 22:28:36,113 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:36,113 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:36,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:36,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:36,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:36,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:36,136 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:36,180 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:36,180 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:36,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:36,184 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:36,188 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 [2023-11-23 22:28:36,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:36,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:36,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:36,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:36,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-11-23 22:28:36,204 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:28:36,204 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:28:36,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:36,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:36,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:36,245 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:36,247 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 [2023-11-23 22:28:36,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:36,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:36,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:36,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:36,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:36,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:36,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:36,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-11-23 22:28:36,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:36,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:36,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:36,298 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:36,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-23 22:28:36,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:36,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:36,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:36,315 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:36,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:36,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:36,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:36,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-11-23 22:28:36,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:36,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:36,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:36,348 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:36,353 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 [2023-11-23 22:28:36,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:36,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:36,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:36,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:36,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:36,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:36,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:36,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-11-23 22:28:36,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:36,395 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:36,395 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-23 22:28:36,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:36,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:36,397 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:36,404 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:36,404 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:36,405 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:36,405 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 [] [2023-11-23 22:28:36,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-11-23 22:28:36,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:36,426 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:36,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,487 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:36,550 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 [2023-11-23 22:28:36,550 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) [2023-11-23 22:28:36,610 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. [2023-11-23 22:28:36,611 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 [2023-11-23 22:28:36,613 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) [2023-11-23 22:28:36,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-23 22:28:36,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-23 22:28:36,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:36,614 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:28:36,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,669 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:36,722 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 [2023-11-23 22:28:36,723 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) [2023-11-23 22:28:36,763 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. [2023-11-23 22:28:36,763 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 [2023-11-23 22:28:36,767 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) [2023-11-23 22:28:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-11-23 22:28:36,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-23 22:28:36,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:36,768 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:28:36,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,792 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:36,823 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:28:36,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:36,875 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 [2023-11-23 22:28:36,876 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) [2023-11-23 22:28:36,924 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. [2023-11-23 22:28:36,924 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 [2023-11-23 22:28:36,926 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) [2023-11-23 22:28:36,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2023-11-23 22:28:36,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 3 letters. [2023-11-23 22:28:36,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:36,928 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 20 letters. Loop has 3 letters. [2023-11-23 22:28:36,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:36,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 17 letters. Loop has 6 letters. [2023-11-23 22:28:36,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:36,931 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 295 transitions. [2023-11-23 22:28:36,933 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 40 [2023-11-23 22:28:36,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 155 states and 195 transitions. [2023-11-23 22:28:36,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2023-11-23 22:28:36,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2023-11-23 22:28:36,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 155 states and 195 transitions. [2023-11-23 22:28:36,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:36,937 INFO L218 hiAutomatonCegarLoop]: Abstraction has 155 states and 195 transitions. [2023-11-23 22:28:36,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states and 195 transitions. [2023-11-23 22:28:36,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 97. [2023-11-23 22:28:36,958 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) [2023-11-23 22:28:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 126 transitions. [2023-11-23 22:28:36,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-23 22:28:36,964 INFO L428 stractBuchiCegarLoop]: Abstraction has 97 states and 126 transitions. [2023-11-23 22:28:36,964 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-11-23 22:28:36,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 126 transitions. [2023-11-23 22:28:36,965 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2023-11-23 22:28:36,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:36,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:36,966 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:36,966 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:36,967 INFO L748 eck$LassoCheckResult]: Stem: 2055#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2056#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2062#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2089#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2086#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2088#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2087#L20-3 assume !main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1; 2085#L20-6 main_~x~0#1 := main_~x~0#1 - 1; 2070#L19-2 main_~y~0#1 := main_~y~0#1 - 1; 2067#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2068#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2071#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2135#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2134#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2049#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2050#L20-1 [2023-11-23 22:28:36,967 INFO L750 eck$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 [2023-11-23 22:28:36,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:36,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1293105010, now seen corresponding path program 2 times [2023-11-23 22:28:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140311301] [2023-11-23 22:28:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:28:37,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:37,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140311301] [2023-11-23 22:28:37,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140311301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:37,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:37,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:28:37,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678309163] [2023-11-23 22:28:37,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:37,039 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-11-23 22:28:37,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash 627213861, now seen corresponding path program 2 times [2023-11-23 22:28:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137679163] [2023-11-23 22:28:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:37,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:37,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:37,055 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:37,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:37,203 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:37,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:37,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:37,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:37,203 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:37,203 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,203 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:37,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:37,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-23 22:28:37,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:37,204 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:37,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:37,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:37,375 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:37,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:37,376 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:37,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:37,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:37,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-11-23 22:28:37,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:37,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:37,423 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:37,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:37,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:37,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-11-23 22:28:37,684 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:37,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:37,689 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:37,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:37,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:37,689 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:37,689 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:37,689 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,689 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:37,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:37,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration6_Loop [2023-11-23 22:28:37,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:37,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:37,691 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:37,865 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:37,865 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:37,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:37,868 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:37,873 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 [2023-11-23 22:28:37,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:37,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:37,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:37,885 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-23 22:28:37,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:37,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-11-23 22:28:37,889 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-23 22:28:37,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:37,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:37,918 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:37,918 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:28:37,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:37,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:37,921 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:37,926 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:37,926 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:37,926 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:37,926 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 [] [2023-11-23 22:28:37,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-11-23 22:28:37,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:37,945 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:37,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:37,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:37,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:37,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:37,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:37,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:38,033 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 [2023-11-23 22:28:38,034 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) [2023-11-23 22:28:38,057 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. [2023-11-23 22:28:38,057 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 [2023-11-23 22:28:38,058 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) [2023-11-23 22:28:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2023-11-23 22:28:38,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-23 22:28:38,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:38,059 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:28:38,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:38,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:38,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:38,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:38,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:38,143 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 [2023-11-23 22:28:38,143 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) [2023-11-23 22:28:38,171 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. [2023-11-23 22:28:38,172 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 [2023-11-23 22:28:38,172 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) [2023-11-23 22:28:38,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2023-11-23 22:28:38,173 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-23 22:28:38,173 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:38,173 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-11-23 22:28:38,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:38,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:38,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:38,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:38,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:38,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:38,264 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 [2023-11-23 22:28:38,264 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) [2023-11-23 22:28:38,289 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. [2023-11-23 22:28:38,289 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 [2023-11-23 22:28:38,291 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) [2023-11-23 22:28:38,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2023-11-23 22:28:38,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 7 letters. [2023-11-23 22:28:38,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:38,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 22 letters. Loop has 7 letters. [2023-11-23 22:28:38,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:38,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 14 letters. [2023-11-23 22:28:38,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:38,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 202 states and 273 transitions. [2023-11-23 22:28:38,298 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2023-11-23 22:28:38,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 202 states to 82 states and 100 transitions. [2023-11-23 22:28:38,299 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-11-23 22:28:38,299 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-11-23 22:28:38,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 100 transitions. [2023-11-23 22:28:38,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:38,300 INFO L218 hiAutomatonCegarLoop]: Abstraction has 82 states and 100 transitions. [2023-11-23 22:28:38,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 100 transitions. [2023-11-23 22:28:38,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 26. [2023-11-23 22:28:38,308 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) [2023-11-23 22:28:38,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-23 22:28:38,308 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-23 22:28:38,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:38,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:28:38,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:28:38,309 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) [2023-11-23 22:28:38,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:28:38,320 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-23 22:28:38,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 29 transitions. [2023-11-23 22:28:38,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-23 22:28:38,321 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 19 states and 22 transitions. [2023-11-23 22:28:38,321 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-11-23 22:28:38,322 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-11-23 22:28:38,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2023-11-23 22:28:38,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-11-23 22:28:38,322 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 22 transitions. [2023-11-23 22:28:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2023-11-23 22:28:38,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2023-11-23 22:28:38,323 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) [2023-11-23 22:28:38,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2023-11-23 22:28:38,324 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-23 22:28:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:28:38,325 INFO L428 stractBuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2023-11-23 22:28:38,326 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-11-23 22:28:38,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2023-11-23 22:28:38,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-11-23 22:28:38,326 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-23 22:28:38,326 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-23 22:28:38,327 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:38,327 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:38,327 INFO L748 eck$LassoCheckResult]: Stem: 2869#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2870#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~short3#1, main_~x~0#1, main_~y~0#1, main_~m~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~m~0#1;main_~y~0#1 := 0;havoc main_#t~nondet0#1;main_~m~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_~m~0#1; 2861#L18-2 assume !!(main_~x~0#1 >= 0 && main_~y~0#1 >= 0);havoc main_#t~nondet1#1; 2862#L19 assume 0 != main_#t~nondet1#1;havoc main_#t~nondet1#1; 2864#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2865#L20-1 assume main_#t~short3#1;havoc main_#t~nondet2#1;main_#t~short3#1 := 0 != main_#t~nondet2#1; 2867#L20-3 assume !!main_#t~short3#1;havoc main_#t~nondet2#1;havoc main_#t~short3#1;main_~y~0#1 := 1 + main_~y~0#1; 2868#L20-5 main_#t~short3#1 := main_~y~0#1 <= main_~m~0#1; 2871#L20-1 [2023-11-23 22:28:38,327 INFO L750 eck$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 [2023-11-23 22:28:38,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,328 INFO L85 PathProgramCache]: Analyzing trace with hash 295990974, now seen corresponding path program 1 times [2023-11-23 22:28:38,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:38,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760570568] [2023-11-23 22:28:38,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:38,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,337 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:38,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash -2074549754, now seen corresponding path program 1 times [2023-11-23 22:28:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:38,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633974183] [2023-11-23 22:28:38,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:38,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:38,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,349 INFO L85 PathProgramCache]: Analyzing trace with hash 809095299, now seen corresponding path program 3 times [2023-11-23 22:28:38,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:38,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298865068] [2023-11-23 22:28:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:38,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:38,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:38,511 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:38,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:38,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:38,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:38,512 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-23 22:28:38,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:38,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:38,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:38,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-23 22:28:38,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:38,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:38,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,523 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,553 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,558 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,688 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:38,688 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-23 22:28:38,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:38,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:38,693 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:38,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:38,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:38,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-11-23 22:28:38,717 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-23 22:28:38,717 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: [] [2023-11-23 22:28:38,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2023-11-23 22:28:38,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:38,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:38,731 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:38,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-11-23 22:28:38,734 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-23 22:28:38,734 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:38,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:38,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:38,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:38,758 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:38,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-11-23 22:28:38,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-23 22:28:38,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-23 22:28:38,860 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-23 22:28:38,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-11-23 22:28:38,863 INFO L210 LassoAnalysis]: Preferences: [2023-11-23 22:28:38,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-23 22:28:38,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-23 22:28:38,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-23 22:28:38,863 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-23 22:28:38,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:38,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-23 22:28:38,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-23 22:28:38,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-Fig1.c_Iteration7_Loop [2023-11-23 22:28:38,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-23 22:28:38,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-23 22:28:38,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:38,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:39,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:39,027 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-23 22:28:39,142 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-23 22:28:39,142 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-23 22:28:39,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:39,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:39,145 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:39,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-11-23 22:28:39,154 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 [2023-11-23 22:28:39,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:39,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:39,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:39,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:39,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:39,168 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:39,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:39,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:39,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:39,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:39,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:39,204 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:39,209 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 [2023-11-23 22:28:39,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:39,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:39,221 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:39,221 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:39,223 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-23 22:28:39,224 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-23 22:28:39,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-11-23 22:28:39,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-23 22:28:39,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:39,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:39,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:39,260 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:39,265 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 [2023-11-23 22:28:39,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-23 22:28:39,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-23 22:28:39,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-23 22:28:39,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-23 22:28:39,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-23 22:28:39,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-23 22:28:39,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-23 22:28:39,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-11-23 22:28:39,292 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-23 22:28:39,297 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-23 22:28:39,297 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-23 22:28:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-23 22:28:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:39,301 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:39,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-23 22:28:39,304 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-23 22:28:39,304 INFO L513 LassoAnalysis]: Proved termination. [2023-11-23 22:28:39,304 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 [] [2023-11-23 22:28:39,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-11-23 22:28:39,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:39,350 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-23 22:28:39,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:39,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:39,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:28:39,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:39,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2023-11-23 22:28:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:39,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:28:39,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:28:39,453 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:28:39,454 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 [2023-11-23 22:28:39,454 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) [2023-11-23 22:28:39,470 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. [2023-11-23 22:28:39,470 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 [2023-11-23 22:28:39,471 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) [2023-11-23 22:28:39,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2023-11-23 22:28:39,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 10 letters. [2023-11-23 22:28:39,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:39,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 18 letters. Loop has 10 letters. [2023-11-23 22:28:39,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:39,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 8 letters. Loop has 20 letters. [2023-11-23 22:28:39,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-23 22:28:39,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 54 transitions. [2023-11-23 22:28:39,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:28:39,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 0 states and 0 transitions. [2023-11-23 22:28:39,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-23 22:28:39,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-23 22:28:39,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-23 22:28:39,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:39,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:28:39,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:28:39,475 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:28:39,475 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-11-23 22:28:39,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:28:39,475 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-23 22:28:39,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-23 22:28:39,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 10:28:39 BoogieIcfgContainer [2023-11-23 22:28:39,484 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-23 22:28:39,484 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:28:39,484 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:28:39,485 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:28:39,485 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:29" (3/4) ... [2023-11-23 22:28:39,487 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:28:39,489 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:28:39,489 INFO L158 Benchmark]: Toolchain (without parser) took 10115.49ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 117.1MB in the beginning and 177.9MB in the end (delta: -60.8MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-23 22:28:39,490 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory was 97.4MB in the beginning and 97.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:39,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.18ms. Allocated memory is still 151.0MB. Free memory was 116.7MB in the beginning and 107.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:28:39,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.09ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:39,491 INFO L158 Benchmark]: Boogie Preprocessor took 44.89ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:39,492 INFO L158 Benchmark]: RCFGBuilder took 288.16ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 96.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 22:28:39,492 INFO L158 Benchmark]: BuchiAutomizer took 9524.56ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 96.2MB in the beginning and 177.9MB in the end (delta: -81.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:39,492 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 222.3MB. Free memory is still 177.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:39,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory was 97.4MB in the beginning and 97.2MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.18ms. Allocated memory is still 151.0MB. Free memory was 116.7MB in the beginning and 107.6MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.09ms. Allocated memory is still 151.0MB. Free memory was 107.6MB in the beginning and 106.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.89ms. Allocated memory is still 151.0MB. Free memory was 106.3MB in the beginning and 104.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.16ms. Allocated memory is still 151.0MB. Free memory was 104.6MB in the beginning and 96.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 9524.56ms. Allocated memory was 151.0MB in the beginning and 222.3MB in the end (delta: 71.3MB). Free memory was 96.2MB in the beginning and 177.9MB in the end (delta: -81.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 222.3MB. Free memory is still 177.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (3 trivial, 5 deterministic, 2 nondeterministic). One deterministic module has affine ranking function ((2 * y) + 1) and consists of 5 locations. One deterministic module has affine ranking function (((2 * m) + (-2 * y)) + 1) and consists of 6 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function (((2 * m) + (-2 * y)) + 1) and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.4s and 8 iterations. TraceHistogramMax:3. Analysis of lassos took 6.9s. Construction of modules took 0.3s. Büchi inclusion checks took 1.9s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 167 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 269 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 258 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 144 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 163 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax172 hnf100 lsp50 ukn91 mio100 lsp100 div100 bol106 ite100 ukn100 eq146 hnf95 smp100 dnf149 smp86 tf109 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-23 22:28:39,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-23 22:28:39,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0cd30ac-4e4b-4a20-99b5-64f50753bc87/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE