./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/DivMinus2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a 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_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/DivMinus2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU --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 804e8d646f3136915195a4e5e9f5153cc3c1cd2abf96df3f09c683a14a27e4de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:01:00,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:01:00,211 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 22:01:00,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:01:00,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:01:00,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:01:00,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:01:00,257 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:01:00,257 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:01:00,261 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:01:00,262 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:01:00,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:01:00,262 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:01:00,263 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:01:00,263 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:01:00,263 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:01:00,263 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:01:00,264 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:01:00,264 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:01:00,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:01:00,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:01:00,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:01:00,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:01:00,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:01:00,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:01:00,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:01:00,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:01:00,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:01:00,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:01:00,271 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:01:00,271 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:01:00,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:01:00,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:01:00,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:01:00,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:01:00,275 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:01:00,275 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_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804e8d646f3136915195a4e5e9f5153cc3c1cd2abf96df3f09c683a14a27e4de [2024-10-31 22:01:00,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:01:00,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:01:00,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:01:00,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:01:00,588 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:01:00,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-restricted-15/DivMinus2.c Unable to find full path for "g++" [2024-10-31 22:01:02,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:01:02,990 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:01:02,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/sv-benchmarks/c/termination-restricted-15/DivMinus2.c [2024-10-31 22:01:02,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/data/b2a9635e5/24547c05267a4113bd07538ba727a6d0/FLAG5b59acb6a [2024-10-31 22:01:03,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/data/b2a9635e5/24547c05267a4113bd07538ba727a6d0 [2024-10-31 22:01:03,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:01:03,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:01:03,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:03,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:01:03,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:01:03,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d047e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03, skipping insertion in model container [2024-10-31 22:01:03,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:01:03,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:03,262 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:01:03,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:01:03,287 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:01:03,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03 WrapperNode [2024-10-31 22:01:03,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:01:03,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:03,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:01:03,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:01:03,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,321 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2024-10-31 22:01:03,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:01:03,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:01:03,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:01:03,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:01:03,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,345 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:01:03,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,353 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,354 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:01:03,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:01:03,358 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:01:03,358 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:01:03,359 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (1/1) ... [2024-10-31 22:01:03,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:03,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:03,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:03,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:01:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:01:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:01:03,509 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:01:03,511 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:01:03,591 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-31 22:01:03,591 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:01:03,610 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:01:03,611 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:01:03,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:03 BoogieIcfgContainer [2024-10-31 22:01:03,611 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:01:03,612 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:01:03,613 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:01:03,617 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:01:03,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:03,618 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:01:03" (1/3) ... [2024-10-31 22:01:03,620 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db120ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:03, skipping insertion in model container [2024-10-31 22:01:03,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:03,620 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:01:03" (2/3) ... [2024-10-31 22:01:03,620 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db120ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:01:03, skipping insertion in model container [2024-10-31 22:01:03,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:01:03,621 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:03" (3/3) ... [2024-10-31 22:01:03,622 INFO L332 chiAutomizerObserver]: Analyzing ICFG DivMinus2.c [2024-10-31 22:01:03,697 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:01:03,698 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:01:03,698 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:01:03,698 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:01:03,698 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:01:03,698 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:01:03,699 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:01:03,699 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:01:03,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-31 22:01:03,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:01:03,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:03,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:03,736 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:03,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:01:03,737 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:01:03,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) [2024-10-31 22:01:03,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-10-31 22:01:03,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:03,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:03,740 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:03,740 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-10-31 22:01:03,750 INFO L745 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~ytmp~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~ytmp~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 9#L14-2true [2024-10-31 22:01:03,751 INFO L747 eck$LassoCheckResult]: Loop: 9#L14-2true assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 3#L17-2true assume !(0 != main_~ytmp~0#1); 7#L16-2true main_~res~0#1 := 1 + main_~res~0#1; 9#L14-2true [2024-10-31 22:01:03,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-31 22:01:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:03,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164469720] [2024-10-31 22:01:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:03,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:03,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:03,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:03,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:03,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:03,885 INFO L85 PathProgramCache]: Analyzing trace with hash 40950, now seen corresponding path program 1 times [2024-10-31 22:01:03,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:03,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294452677] [2024-10-31 22:01:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:03,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:03,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:03,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294452677] [2024-10-31 22:01:03,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294452677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:03,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:03,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:01:03,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507889692] [2024-10-31 22:01:03,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:03,983 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:01:03,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:04,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:01:04,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:01:04,019 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-10-31 22:01:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:04,049 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2024-10-31 22:01:04,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2024-10-31 22:01:04,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:01:04,055 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 10 transitions. [2024-10-31 22:01:04,056 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-10-31 22:01:04,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-10-31 22:01:04,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2024-10-31 22:01:04,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:04,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-10-31 22:01:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2024-10-31 22:01:04,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-10-31 22:01:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.25) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2024-10-31 22:01:04,084 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-10-31 22:01:04,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:01:04,089 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2024-10-31 22:01:04,089 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 22:01:04,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2024-10-31 22:01:04,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-10-31 22:01:04,090 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:04,090 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:04,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-31 22:01:04,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-10-31 22:01:04,091 INFO L745 eck$LassoCheckResult]: Stem: 34#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 35#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~ytmp~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~ytmp~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 37#L14-2 [2024-10-31 22:01:04,091 INFO L747 eck$LassoCheckResult]: Loop: 37#L14-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 31#L17-2 assume !!(0 != main_~ytmp~0#1); 32#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 33#L17-2 assume !(0 != main_~ytmp~0#1); 36#L16-2 main_~res~0#1 := 1 + main_~res~0#1; 37#L14-2 [2024-10-31 22:01:04,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:04,092 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-10-31 22:01:04,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:04,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672490458] [2024-10-31 22:01:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:04,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:04,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:04,104 INFO L85 PathProgramCache]: Analyzing trace with hash 39406393, now seen corresponding path program 1 times [2024-10-31 22:01:04,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:04,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425398453] [2024-10-31 22:01:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,121 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:04,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845879, now seen corresponding path program 1 times [2024-10-31 22:01:04,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:04,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274448954] [2024-10-31 22:01:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:04,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:04,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:04,325 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:04,326 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:04,326 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:04,326 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:04,326 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:04,326 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,327 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:04,327 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:04,327 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration2_Loop [2024-10-31 22:01:04,327 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:04,327 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:04,347 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,377 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,437 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,600 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:04,601 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:04,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 22:01:04,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:04,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,633 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:04,634 INFO L401 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: [] [2024-10-31 22:01:04,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 22:01:04,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 22:01:04,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:04,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,673 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:04,674 INFO L401 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: [] [2024-10-31 22:01:04,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:04,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,691 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 22:01:04,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:04,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:04,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 22:01:04,733 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:04,733 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,763 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:04,763 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0#1=0} Honda state: {ULTIMATE.start_main_~res~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0#1=1}, {ULTIMATE.start_main_~res~0#1=0}, {ULTIMATE.start_main_~res~0#1=0}] Lambdas: [1, 12, 0] Nus: [1, 0] [2024-10-31 22:01:04,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:04,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 22:01:04,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:04,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,796 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:04,796 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:04,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:04,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 22:01:04,814 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:04,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 22:01:04,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:04,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:04,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 22:01:04,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:04,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:04,895 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:04,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:04,898 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:04,898 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:04,899 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:04,899 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:04,899 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:04,899 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:04,899 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:04,899 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:04,899 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration2_Loop [2024-10-31 22:01:04,899 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:04,899 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:04,901 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,908 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,913 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,927 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:04,941 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:05,032 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:05,037 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:05,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,041 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 22:01:05,045 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 [2024-10-31 22:01:05,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:05,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:05,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:05,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:05,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:05,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:05,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:05,068 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:05,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-10-31 22:01:05,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,082 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 22:01:05,085 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 [2024-10-31 22:01:05,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:05,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:05,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:05,096 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:05,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:05,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:05,106 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:05,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,127 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 22:01:05,129 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 [2024-10-31 22:01:05,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:05,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:05,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:05,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:05,144 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:05,144 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:05,151 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:05,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-10-31 22:01:05,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,172 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-10-31 22:01:05,175 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 [2024-10-31 22:01:05,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:05,186 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:05,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:05,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:05,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:05,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:05,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:05,190 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:05,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,204 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:01:05,207 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 [2024-10-31 22:01:05,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:05,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:05,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:05,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:05,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:05,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:05,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:05,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:05,229 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:05,230 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:05,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,240 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:01:05,242 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:05,242 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:05,242 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:05,243 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2024-10-31 22:01:05,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-10-31 22:01:05,263 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:05,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:05,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:05,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:05,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:01:05,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:05,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:05,430 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 [2024-10-31 22:01:05,432 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-10-31 22:01:05,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 34 transitions. Complement of second has 7 states. [2024-10-31 22:01:05,488 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 [2024-10-31 22:01:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-10-31 22:01:05,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-10-31 22:01:05,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 5 letters. [2024-10-31 22:01:05,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:05,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 5 letters. [2024-10-31 22:01:05,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:05,493 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 10 letters. [2024-10-31 22:01:05,494 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:05,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 34 transitions. [2024-10-31 22:01:05,496 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:05,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 19 states and 26 transitions. [2024-10-31 22:01:05,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-10-31 22:01:05,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-10-31 22:01:05,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2024-10-31 22:01:05,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:05,499 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 26 transitions. [2024-10-31 22:01:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2024-10-31 22:01:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-10-31 22:01:05,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 17 states have internal predecessors, (24), 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) [2024-10-31 22:01:05,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 24 transitions. [2024-10-31 22:01:05,503 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-10-31 22:01:05,503 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-10-31 22:01:05,503 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:01:05,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 24 transitions. [2024-10-31 22:01:05,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:05,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:05,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:05,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2024-10-31 22:01:05,505 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:05,505 INFO L745 eck$LassoCheckResult]: Stem: 120#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 121#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_~x~0#1, main_~y~0#1, main_~ytmp~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~ytmp~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 122#L14-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 111#L17-2 assume !!(0 != main_~ytmp~0#1); 112#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 126#L17-2 assume !!(0 != main_~ytmp~0#1); 110#L17 [2024-10-31 22:01:05,505 INFO L747 eck$LassoCheckResult]: Loop: 110#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 109#L17-2 assume !!(0 != main_~ytmp~0#1); 110#L17 [2024-10-31 22:01:05,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,506 INFO L85 PathProgramCache]: Analyzing trace with hash 889698377, now seen corresponding path program 1 times [2024-10-31 22:01:05,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:05,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551208316] [2024-10-31 22:01:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:05,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,515 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:05,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1694, now seen corresponding path program 1 times [2024-10-31 22:01:05,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:05,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834838488] [2024-10-31 22:01:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:05,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash 301649126, now seen corresponding path program 2 times [2024-10-31 22:01:05,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:05,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841500106] [2024-10-31 22:01:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:05,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:05,569 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:05,630 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:05,630 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:05,630 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:05,630 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:05,631 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:05,631 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,631 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:05,631 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:05,632 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration3_Loop [2024-10-31 22:01:05,632 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:05,632 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:05,634 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:05,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:05,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:05,652 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:05,726 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:05,728 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:05,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,731 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:01:05,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:05,736 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,755 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:05,755 INFO L401 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: [] [2024-10-31 22:01:05,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:01:05,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,769 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:01:05,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:05,773 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,802 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:01:05,804 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:05,804 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,832 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:05,832 INFO L401 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: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2024-10-31 22:01:05,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,849 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:01:05,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:05,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,871 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:05,871 INFO L401 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: [] [2024-10-31 22:01:05,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:01:05,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:01:05,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:05,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:05,914 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:05,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:01:05,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:05,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:05,987 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:05,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:05,991 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:05,991 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:05,991 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:05,991 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:05,991 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:05,991 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:05,992 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:05,992 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:05,992 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration3_Loop [2024-10-31 22:01:05,992 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:05,992 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:05,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,001 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,093 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:06,094 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:06,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,096 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:01:06,098 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 [2024-10-31 22:01:06,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:06,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:06,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:06,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:06,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-10-31 22:01:06,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-10-31 22:01:06,121 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:06,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:01:06,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,142 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:01:06,145 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 [2024-10-31 22:01:06,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:06,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:06,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:06,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:06,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:06,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:06,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:06,165 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:06,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-10-31 22:01:06,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,186 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-10-31 22:01:06,188 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 [2024-10-31 22:01:06,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:06,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:06,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:06,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:06,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:06,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:06,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:06,207 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:06,211 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:06,212 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:06,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,219 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:01:06,222 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:06,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:06,223 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:06,223 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0#1) = 1*ULTIMATE.start_main_~ytmp~0#1 Supporting invariants [] [2024-10-31 22:01:06,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:06,244 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:06,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:06,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,292 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:06,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:06,320 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 [2024-10-31 22:01:06,320 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:06,341 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 24 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 41 transitions. Complement of second has 5 states. [2024-10-31 22:01:06,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-31 22:01:06,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-10-31 22:01:06,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2024-10-31 22:01:06,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2024-10-31 22:01:06,345 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 41 transitions. [2024-10-31 22:01:06,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:06,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 28 states and 39 transitions. [2024-10-31 22:01:06,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-10-31 22:01:06,351 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-10-31 22:01:06,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 39 transitions. [2024-10-31 22:01:06,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:06,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 28 states and 39 transitions. [2024-10-31 22:01:06,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 39 transitions. [2024-10-31 22:01:06,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2024-10-31 22:01:06,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.4) internal successors, (35), 24 states have internal predecessors, (35), 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) [2024-10-31 22:01:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 35 transitions. [2024-10-31 22:01:06,357 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 35 transitions. [2024-10-31 22:01:06,357 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 35 transitions. [2024-10-31 22:01:06,357 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:01:06,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 35 transitions. [2024-10-31 22:01:06,358 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:06,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:06,358 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:06,360 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2024-10-31 22:01:06,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:06,361 INFO L745 eck$LassoCheckResult]: Stem: 208#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~ytmp~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~ytmp~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 214#L14-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 224#L17-2 assume !!(0 != main_~ytmp~0#1); 222#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 220#L17-2 assume !!(0 != main_~ytmp~0#1); 204#L17 assume !(main_~ytmp~0#1 > 0);main_~ytmp~0#1 := 1 + main_~ytmp~0#1;main_~x~0#1 := 1 + main_~x~0#1; 217#L17-2 [2024-10-31 22:01:06,361 INFO L747 eck$LassoCheckResult]: Loop: 217#L17-2 assume !!(0 != main_~ytmp~0#1); 218#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 217#L17-2 [2024-10-31 22:01:06,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:06,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1810845936, now seen corresponding path program 1 times [2024-10-31 22:01:06,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:06,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464414411] [2024-10-31 22:01:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:06,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:06,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:06,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464414411] [2024-10-31 22:01:06,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464414411] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:01:06,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:01:06,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:01:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287658477] [2024-10-31 22:01:06,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:01:06,460 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:06,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1604, now seen corresponding path program 2 times [2024-10-31 22:01:06,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:06,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960099003] [2024-10-31 22:01:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:06,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:06,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:06,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:06,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:06,519 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:06,519 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:06,519 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:06,519 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:06,519 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:06,519 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,519 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:06,519 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:06,519 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration4_Loop [2024-10-31 22:01:06,520 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:06,520 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:06,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,529 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,539 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,598 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:06,598 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:06,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,602 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:01:06,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:06,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:06,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:06,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,644 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:01:06,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:06,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:06,688 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:06,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 22:01:06,691 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:06,691 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:06,691 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:06,691 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:06,691 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:06,691 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,691 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:06,691 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:06,691 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration4_Loop [2024-10-31 22:01:06,691 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:06,692 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:06,693 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,701 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,706 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,709 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:06,772 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:06,773 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:06,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,775 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:01:06,777 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 [2024-10-31 22:01:06,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:06,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:06,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:06,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:06,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:06,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:06,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:06,795 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:06,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:01:06,800 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:01:06,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:06,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:06,803 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:06,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:01:06,806 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:06,806 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:06,806 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:06,806 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0#1) = 1*ULTIMATE.start_main_~ytmp~0#1 Supporting invariants [] [2024-10-31 22:01:06,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:06,825 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:06,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:06,847 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,861 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:06,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:06,865 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-10-31 22:01:06,865 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 14 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:06,880 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 35 transitions. cyclomatic complexity: 14. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 44 transitions. Complement of second has 5 states. [2024-10-31 22:01:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:06,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:01:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2024-10-31 22:01:06,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2024-10-31 22:01:06,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2024-10-31 22:01:06,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2024-10-31 22:01:06,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:06,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 44 transitions. [2024-10-31 22:01:06,883 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-10-31 22:01:06,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 44 transitions. [2024-10-31 22:01:06,884 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-10-31 22:01:06,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-10-31 22:01:06,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2024-10-31 22:01:06,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:06,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 30 states and 44 transitions. [2024-10-31 22:01:06,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2024-10-31 22:01:06,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-10-31 22:01:06,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 28 states have internal predecessors, (43), 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) [2024-10-31 22:01:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2024-10-31 22:01:06,887 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 43 transitions. [2024-10-31 22:01:06,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:01:06,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:01:06,888 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2024-10-31 22:01:06,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:06,902 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2024-10-31 22:01:06,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 25 transitions. [2024-10-31 22:01:06,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:06,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 15 states and 19 transitions. [2024-10-31 22:01:06,904 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-10-31 22:01:06,904 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2024-10-31 22:01:06,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2024-10-31 22:01:06,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:01:06,905 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 19 transitions. [2024-10-31 22:01:06,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2024-10-31 22:01:06,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2024-10-31 22:01:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-10-31 22:01:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-10-31 22:01:06,907 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-10-31 22:01:06,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:01:06,909 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-10-31 22:01:06,909 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:01:06,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2024-10-31 22:01:06,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-31 22:01:06,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:01:06,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:01:06,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1] [2024-10-31 22:01:06,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:01:06,910 INFO L745 eck$LassoCheckResult]: Stem: 354#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 355#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~ytmp~0#1, main_~res~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~ytmp~0#1;havoc main_~res~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~res~0#1 := 0; 358#L14-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 351#L17-2 assume !!(0 != main_~ytmp~0#1); 352#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 353#L17-2 assume !(0 != main_~ytmp~0#1); 356#L16-2 main_~res~0#1 := 1 + main_~res~0#1; 357#L14-2 assume !!(main_~x~0#1 >= main_~y~0#1 && main_~y~0#1 > 0);main_~ytmp~0#1 := main_~y~0#1; 359#L17-2 assume !!(0 != main_~ytmp~0#1); 361#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 360#L17-2 assume !!(0 != main_~ytmp~0#1); 350#L17 [2024-10-31 22:01:06,911 INFO L747 eck$LassoCheckResult]: Loop: 350#L17 assume main_~ytmp~0#1 > 0;main_~ytmp~0#1 := main_~ytmp~0#1 - 1;main_~x~0#1 := main_~x~0#1 - 1; 349#L17-2 assume !!(0 != main_~ytmp~0#1); 350#L17 [2024-10-31 22:01:06,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:06,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1306487613, now seen corresponding path program 2 times [2024-10-31 22:01:06,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:06,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244797825] [2024-10-31 22:01:06,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:06,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:06,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-10-31 22:01:07,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-10-31 22:01:07,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:07,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:01:07,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244797825] [2024-10-31 22:01:07,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244797825] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:01:07,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33719755] [2024-10-31 22:01:07,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:01:07,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:01:07,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,194 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-31 22:01:07,235 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:01:07,235 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:01:07,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:01:07,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:07,305 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:07,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:01:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:07,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33719755] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:01:07,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:01:07,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-10-31 22:01:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865840798] [2024-10-31 22:01:07,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:01:07,436 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:01:07,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:07,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1694, now seen corresponding path program 3 times [2024-10-31 22:01:07,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:01:07,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670397192] [2024-10-31 22:01:07,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:01:07,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:01:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:07,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:01:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:01:07,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:01:07,491 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:07,492 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:07,492 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:07,492 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:07,492 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:01:07,492 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,492 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:07,492 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:07,492 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration5_Loop [2024-10-31 22:01:07,492 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:07,493 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:07,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,511 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,594 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:07,594 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:01:07,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,598 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:01:07,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:07,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:07,626 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:07,626 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:01:07,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,650 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:01:07,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:07,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:07,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-10-31 22:01:07,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,691 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:01:07,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:07,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:07,737 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:01:07,737 INFO L401 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: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-3}] Lambdas: [1, 4, 1] Nus: [0, 1] [2024-10-31 22:01:07,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,760 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:01:07,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:01:07,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:07,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,802 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:01:07,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:01:07,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:01:07,898 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:01:07,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:07,903 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:01:07,903 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:01:07,903 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:01:07,903 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:01:07,903 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:01:07,903 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,903 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:01:07,903 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:01:07,903 INFO L132 ssoRankerPreferences]: Filename of dumped script: DivMinus2.c_Iteration5_Loop [2024-10-31 22:01:07,903 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:01:07,903 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:01:07,904 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,909 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,919 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,923 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:01:07,982 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:01:07,982 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:01:07,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:07,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:07,985 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:07,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:01:07,989 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 [2024-10-31 22:01:08,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:08,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:08,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:08,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:08,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:08,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:08,005 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:08,007 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:01:08,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:01:08,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:08,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:08,028 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:08,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-10-31 22:01:08,030 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 [2024-10-31 22:01:08,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:01:08,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:01:08,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:01:08,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:01:08,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:01:08,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:01:08,047 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:01:08,050 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:01:08,052 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:01:08,052 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:01:08,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:01:08,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:01:08,055 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:01:08,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:01:08,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:01:08,057 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:01:08,057 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:01:08,057 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0#1) = 1*ULTIMATE.start_main_~ytmp~0#1 Supporting invariants [] [2024-10-31 22:01:08,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-10-31 22:01:08,070 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:01:08,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,122 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:08,139 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 [2024-10-31 22:01:08,139 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,150 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 17 states and 21 transitions. Complement of second has 5 states. [2024-10-31 22:01:08,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-10-31 22:01:08,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:01:08,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,152 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:08,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,206 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:08,226 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-10-31 22:01:08,226 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,244 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 16 states and 20 transitions. Complement of second has 5 states. [2024-10-31 22:01:08,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-10-31 22:01:08,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:01:08,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,246 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:01:08,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:01:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:01:08,296 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:01:08,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:01:08,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:01:08,315 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 2 loop predicates [2024-10-31 22:01:08,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,327 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 18 states and 22 transitions. Complement of second has 4 states. [2024-10-31 22:01:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-10-31 22:01:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2024-10-31 22:01:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-10-31 22:01:08,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2024-10-31 22:01:08,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 13 letters. Loop has 2 letters. [2024-10-31 22:01:08,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 4 letters. [2024-10-31 22:01:08,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:01:08,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2024-10-31 22:01:08,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:01:08,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2024-10-31 22:01:08,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:01:08,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:01:08,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:01:08,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:08,332 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:08,333 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:01:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:01:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:01:08,334 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 12 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 12 states have internal predecessors, (21), 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) [2024-10-31 22:01:08,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:01:08,334 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-10-31 22:01:08,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-10-31 22:01:08,334 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:01:08,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:01:08,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-31 22:01:08,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-31 22:01:08,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-31 22:01:08,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-31 22:01:08,335 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:08,336 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:08,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:01:08,336 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:01:08,337 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:01:08,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:01:08,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-31 22:01:08,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-31 22:01:08,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:01:08 BoogieIcfgContainer [2024-10-31 22:01:08,345 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:01:08,346 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:01:08,346 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:01:08,346 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:01:08,347 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:01:03" (3/4) ... [2024-10-31 22:01:08,349 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-10-31 22:01:08,351 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:01:08,351 INFO L158 Benchmark]: Toolchain (without parser) took 5336.64ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 107.9MB in the beginning and 139.7MB in the end (delta: -31.8MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-10-31 22:01:08,352 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:08,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.18ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 96.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:01:08,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.72ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:08,353 INFO L158 Benchmark]: Boogie Preprocessor took 34.70ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:01:08,353 INFO L158 Benchmark]: RCFGBuilder took 253.69ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 84.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-31 22:01:08,353 INFO L158 Benchmark]: BuchiAutomizer took 4732.68ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 84.5MB in the beginning and 140.7MB in the end (delta: -56.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2024-10-31 22:01:08,354 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 232.8MB. Free memory was 140.7MB in the beginning and 139.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:01:08,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 151.0MB. Free memory is still 122.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.18ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 96.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.72ms. Allocated memory is still 151.0MB. Free memory was 96.4MB in the beginning and 95.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.70ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 93.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 253.69ms. Allocated memory is still 151.0MB. Free memory was 93.5MB in the beginning and 84.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4732.68ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 84.5MB in the beginning and 140.7MB in the end (delta: -56.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 232.8MB. Free memory was 140.7MB in the beginning and 139.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function ytmp and consists of 3 locations. One deterministic module has affine ranking function ytmp and consists of 3 locations. One nondeterministic module has affine ranking function ytmp and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.6s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 46 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax168 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp82 dnf100 smp100 tf113 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 25ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-31 22:01:08,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:01:08,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-10-31 22:01:08,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ca26034-ff95-4592-b94e-a64e13a996d1/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE