./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-assume.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-assume.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC --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 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:36:15,017 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:36:15,100 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-23 23:36:15,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:36:15,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:36:15,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:36:15,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:36:15,128 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:36:15,128 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:36:15,129 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:36:15,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:36:15,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:36:15,129 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:36:15,129 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-23 23:36:15,129 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-23 23:36:15,129 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-23 23:36:15,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-23 23:36:15,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:36:15,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:36:15,131 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:36:15,133 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:36:15,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:36:15,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-23 23:36:15,134 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-23 23:36:15,134 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC 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 -> 8beb7be7ecdb66eb2007be5f75989c5fdc3ddad5d7117f2ded11c36f0703f203 [2024-11-23 23:36:15,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:36:15,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:36:15,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:36:15,465 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:36:15,466 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:36:15,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/termination-bwb/and-assume.i [2024-11-23 23:36:18,361 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/data/b491cc023/f1c2d65743374b0b9e8a252f436bc7f6/FLAG5265354ab [2024-11-23 23:36:18,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:36:18,655 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/sv-benchmarks/c/termination-bwb/and-assume.i [2024-11-23 23:36:18,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/data/b491cc023/f1c2d65743374b0b9e8a252f436bc7f6/FLAG5265354ab [2024-11-23 23:36:18,682 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/data/b491cc023/f1c2d65743374b0b9e8a252f436bc7f6 [2024-11-23 23:36:18,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:36:18,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:36:18,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:36:18,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:36:18,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:36:18,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:18" (1/1) ... [2024-11-23 23:36:18,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5574d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:18, skipping insertion in model container [2024-11-23 23:36:18,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:36:18" (1/1) ... [2024-11-23 23:36:18,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:36:19,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:36:19,100 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:36:19,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:36:19,184 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:36:19,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19 WrapperNode [2024-11-23 23:36:19,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:36:19,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:36:19,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:36:19,187 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:36:19,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,228 INFO L138 Inliner]: procedures = 110, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-11-23 23:36:19,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:36:19,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:36:19,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:36:19,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:36:19,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,256 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 23:36:19,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,258 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,272 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:36:19,273 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:36:19,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:36:19,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:36:19,274 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (1/1) ... [2024-11-23 23:36:19,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:19,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:19,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:19,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-23 23:36:19,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:36:19,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:36:19,444 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:36:19,446 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:36:19,546 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-23 23:36:19,546 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:36:19,561 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:36:19,561 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 23:36:19,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:19 BoogieIcfgContainer [2024-11-23 23:36:19,562 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:36:19,563 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-23 23:36:19,565 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-23 23:36:19,573 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-23 23:36:19,574 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:36:19,574 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 11:36:18" (1/3) ... [2024-11-23 23:36:19,575 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7588c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:36:19, skipping insertion in model container [2024-11-23 23:36:19,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:36:19,576 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:36:19" (2/3) ... [2024-11-23 23:36:19,576 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7588c409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 11:36:19, skipping insertion in model container [2024-11-23 23:36:19,576 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-23 23:36:19,576 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:19" (3/3) ... [2024-11-23 23:36:19,578 INFO L363 chiAutomizerObserver]: Analyzing ICFG and-assume.i [2024-11-23 23:36:19,647 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-23 23:36:19,648 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-23 23:36:19,648 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-23 23:36:19,648 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-23 23:36:19,648 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-23 23:36:19,649 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-23 23:36:19,649 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-23 23:36:19,649 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-23 23:36:19,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-11-23 23:36:19,671 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:19,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:36:19,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:36:19,679 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 23:36:19,679 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-23 23:36:19,679 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-23 23:36:19,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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) [2024-11-23 23:36:19,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:19,680 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:36:19,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:36:19,681 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-23 23:36:19,681 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-23 23:36:19,690 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume !!(main_~a~0#1 > 0);" [2024-11-23 23:36:19,691 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 > 0;" "main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" "assume 0 == main_~x~0#1 || 0 == main_~a~0#1;main_#t~bitwise6#1 := 0;" "main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1;" [2024-11-23 23:36:19,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-23 23:36:19,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:19,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838801123] [2024-11-23 23:36:19,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,783 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,802 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:19,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:19,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1327791, now seen corresponding path program 1 times [2024-11-23 23:36:19,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:19,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883679795] [2024-11-23 23:36:19,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:19,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,831 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:19,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:19,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1806937554, now seen corresponding path program 1 times [2024-11-23 23:36:19,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:19,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298639377] [2024-11-23 23:36:19,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:19,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,865 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:19,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:20,017 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:20,018 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:20,018 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:20,018 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:20,018 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:36:20,018 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,018 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:20,018 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:20,019 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2024-11-23 23:36:20,019 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:20,019 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:20,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,057 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,086 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,214 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:20,214 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:36:20,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:20,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:20,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-23 23:36:20,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:20,227 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:20,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-23 23:36:20,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:20,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:20,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-23 23:36:20,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:36:20,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:20,311 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:36:20,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:20,316 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:20,316 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:20,316 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:20,316 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:20,316 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:36:20,316 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,316 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:20,316 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:20,316 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration1_Loop [2024-11-23 23:36:20,317 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:20,317 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:20,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,330 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,335 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,354 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,364 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:20,484 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:20,490 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:36:20,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:20,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:20,500 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 [2024-11-23 23:36:20,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-23 23:36:20,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:36:20,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:36:20,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:36:20,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:36:20,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:36:20,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:36:20,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:36:20,523 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:36:20,528 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-23 23:36:20,531 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-23 23:36:20,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:20,535 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:20,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-23 23:36:20,539 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:36:20,539 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:36:20,540 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:36:20,540 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 [] [2024-11-23 23:36:20,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-23 23:36:20,552 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:36:20,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:20,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:36:20,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:20,613 WARN L254 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 23:36:20,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:20,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:20,710 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 [2024-11-23 23:36:20,715 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 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) [2024-11-23 23:36:20,823 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 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 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 50 states and 69 transitions. Complement of second has 10 states. [2024-11-23 23:36:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 23:36:20,829 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) [2024-11-23 23:36:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 39 transitions. [2024-11-23 23:36:20,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 39 transitions. Stem has 3 letters. Loop has 4 letters. [2024-11-23 23:36:20,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:20,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 39 transitions. Stem has 7 letters. Loop has 4 letters. [2024-11-23 23:36:20,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:20,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 39 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-23 23:36:20,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:20,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 69 transitions. [2024-11-23 23:36:20,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:20,847 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 26 states and 34 transitions. [2024-11-23 23:36:20,848 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2024-11-23 23:36:20,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2024-11-23 23:36:20,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2024-11-23 23:36:20,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:36:20,849 INFO L218 hiAutomatonCegarLoop]: Abstraction has 26 states and 34 transitions. [2024-11-23 23:36:20,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2024-11-23 23:36:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2024-11-23 23:36:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 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) [2024-11-23 23:36:20,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-11-23 23:36:20,875 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-23 23:36:20,876 INFO L425 stractBuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-11-23 23:36:20,876 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-23 23:36:20,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2024-11-23 23:36:20,877 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:20,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:36:20,877 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:36:20,877 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-23 23:36:20,877 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-23 23:36:20,877 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume !!(main_~a~0#1 > 0);" "assume main_~x~0#1 > 0;" [2024-11-23 23:36:20,878 INFO L749 eck$LassoCheckResult]: Loop: "main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" "assume !(0 == main_~x~0#1 || 0 == main_~a~0#1);" "assume main_~x~0#1 == main_~a~0#1;main_#t~bitwise6#1 := main_~x~0#1;" "main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1;" "assume main_~x~0#1 > 0;" [2024-11-23 23:36:20,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:20,878 INFO L85 PathProgramCache]: Analyzing trace with hash 925673, now seen corresponding path program 1 times [2024-11-23 23:36:20,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:20,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996993318] [2024-11-23 23:36:20,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:20,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,883 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash 45009378, now seen corresponding path program 1 times [2024-11-23 23:36:20,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:20,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884055197] [2024-11-23 23:36:20,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,901 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:20,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:20,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1300257530, now seen corresponding path program 1 times [2024-11-23 23:36:20,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:20,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727530310] [2024-11-23 23:36:20,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:20,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,927 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:20,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:20,998 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:20,998 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:20,998 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:20,998 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:20,998 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:36:20,998 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:20,998 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:20,998 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:20,998 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Loop [2024-11-23 23:36:20,999 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:20,999 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:21,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,013 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,031 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:21,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:36:21,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:21,111 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:21,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-23 23:36:21,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:21,115 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:21,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:21,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:21,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:21,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-23 23:36:21,148 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:36:21,148 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:21,292 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:36:21,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-23 23:36:21,296 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:21,296 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:21,296 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:21,296 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:21,296 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:36:21,297 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,297 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:21,297 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:21,297 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration2_Loop [2024-11-23 23:36:21,297 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:21,297 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:21,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,332 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:21,424 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:21,425 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:36:21,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:21,428 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:21,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-23 23:36:21,432 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 [2024-11-23 23:36:21,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:36:21,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-23 23:36:21,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:36:21,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-23 23:36:21,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:36:21,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-23 23:36:21,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-23 23:36:21,454 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:36:21,457 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-23 23:36:21,457 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-23 23:36:21,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:21,462 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:21,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-23 23:36:21,465 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:36:21,465 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-23 23:36:21,465 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:36:21,465 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [] [2024-11-23 23:36:21,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-23 23:36:21,476 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-23 23:36:21,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:21,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 23:36:21,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:21,512 WARN L254 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 23:36:21,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:21,584 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2024-11-23 23:36:21,584 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 7 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-23 23:36:21,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 7. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 45 states and 55 transitions. Complement of second has 8 states. [2024-11-23 23:36:21,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-23 23:36:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-23 23:36:21,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2024-11-23 23:36:21,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 5 letters. [2024-11-23 23:36:21,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:21,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 5 letters. [2024-11-23 23:36:21,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:21,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 4 letters. Loop has 10 letters. [2024-11-23 23:36:21,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:21,685 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2024-11-23 23:36:21,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:21,687 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 41 states and 51 transitions. [2024-11-23 23:36:21,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-23 23:36:21,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-23 23:36:21,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2024-11-23 23:36:21,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-23 23:36:21,687 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 51 transitions. [2024-11-23 23:36:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2024-11-23 23:36:21,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2024-11-23 23:36:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.25) internal successors, (50), 39 states have internal predecessors, (50), 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) [2024-11-23 23:36:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2024-11-23 23:36:21,691 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 50 transitions. [2024-11-23 23:36:21,691 INFO L425 stractBuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2024-11-23 23:36:21,691 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-23 23:36:21,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2024-11-23 23:36:21,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-23 23:36:21,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-23 23:36:21,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-23 23:36:21,693 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-23 23:36:21,693 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-23 23:36:21,693 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~post5#1, main_#t~bitwise6#1, main_~a~0#1, main_~x~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~a~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume !!(main_~a~0#1 > 0);" "assume main_~x~0#1 > 0;" "main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" [2024-11-23 23:36:21,693 INFO L749 eck$LassoCheckResult]: Loop: "assume !(0 == main_~x~0#1 || 0 == main_~a~0#1);" "assume !(main_~x~0#1 == main_~a~0#1);" "havoc main_#t~bitwise6#1;assume (((((main_~x~0#1 < 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 <= main_~x~0#1) && ((main_~x~0#1 >= 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 <= main_~a~0#1)) && ((main_~x~0#1 < 0 && main_~a~0#1 < 0) || main_#t~bitwise6#1 >= 0)) && ((main_~x~0#1 >= 0 && main_~a~0#1 >= 0) || main_#t~bitwise6#1 > main_~x~0#1 + main_~a~0#1)) && main_#t~bitwise6#1 >= -2147483648;" "main_~x~0#1 := main_#t~bitwise6#1;havoc main_#t~bitwise6#1;" "assume main_~x~0#1 > 0;" "main_#t~post5#1 := main_~a~0#1;main_~a~0#1 := main_#t~post5#1 - 1;havoc main_#t~post5#1;" [2024-11-23 23:36:21,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash 28695880, now seen corresponding path program 1 times [2024-11-23 23:36:21,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:21,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198794064] [2024-11-23 23:36:21,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:21,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,705 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,713 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:21,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1543143468, now seen corresponding path program 1 times [2024-11-23 23:36:21,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:21,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095266918] [2024-11-23 23:36:21,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:21,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,725 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:21,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash -286192589, now seen corresponding path program 1 times [2024-11-23 23:36:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-23 23:36:21,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275259305] [2024-11-23 23:36:21,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:36:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:36:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,743 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:36:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:36:21,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-23 23:36:21,946 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:21,946 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:21,946 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:21,946 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:21,946 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:36:21,946 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:21,946 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:21,946 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:21,946 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Loop [2024-11-23 23:36:21,946 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:21,946 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:21,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:22,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-23 23:36:22,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,130 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-23 23:36:22,312 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:22,312 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:36:22,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,315 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-23 23:36:22,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-23 23:36:22,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,349 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:36:22,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-23 23:36:22,504 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,504 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~a~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~a~0#1=0}] Lambdas: [2, 1, 0] Nus: [0, 0] [2024-11-23 23:36:22,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:22,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,513 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-23 23:36:22,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,536 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,537 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5#1=0} Honda state: {ULTIMATE.start_main_#t~post5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:36:22,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-23 23:36:22,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,548 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-23 23:36:22,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,569 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,569 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PID_5=1} Honda state: {v_rep~unnamed0~0~P_PID_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:36:22,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-23 23:36:22,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,578 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-23 23:36:22,580 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,580 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,599 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,599 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_PGID_5=2} Honda state: {v_rep~unnamed0~0~P_PGID_5=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:36:22,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-23 23:36:22,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,608 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-23 23:36:22,610 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,610 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,629 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,629 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~P_ALL_5=0} Honda state: {v_rep~unnamed0~0~P_ALL_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:36:22,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-23 23:36:22,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,638 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:22,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-23 23:36:22,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:22,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:22,652 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-23 23:36:22,652 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~bitwise6#1=0} Honda state: {ULTIMATE.start_main_#t~bitwise6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-23 23:36:22,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-23 23:36:22,682 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:22,682 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:22,682 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:22,682 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:22,682 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-23 23:36:22,682 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,682 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:22,682 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:22,682 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Lasso [2024-11-23 23:36:22,682 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:22,682 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:22,686 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,744 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:22,814 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-23 23:36:22,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:22,994 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-23 23:36:22,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:22,997 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:23,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-23 23:36:23,001 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-23 23:36:23,001 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:23,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-23 23:36:23,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:23,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:23,023 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:23,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-23 23:36:23,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-23 23:36:23,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-23 23:36:23,159 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-23 23:36:23,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-23 23:36:23,164 INFO L204 LassoAnalysis]: Preferences: [2024-11-23 23:36:23,164 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-23 23:36:23,164 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-23 23:36:23,164 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-23 23:36:23,164 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-23 23:36:23,164 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:23,164 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-23 23:36:23,164 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-23 23:36:23,164 INFO L132 ssoRankerPreferences]: Filename of dumped script: and-assume.i_Iteration3_Lasso [2024-11-23 23:36:23,164 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-23 23:36:23,164 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-23 23:36:23,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,219 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-23 23:36:23,301 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2024-11-23 23:36:23,489 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-23 23:36:23,489 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-23 23:36:23,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:23,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:23,492 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:23,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-23 23:36:23,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-23 23:36:23,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-23 23:36:23,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-23 23:36:23,511 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2024-11-23 23:36:23,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-23 23:36:23,564 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2024-11-23 23:36:23,565 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2024-11-23 23:36:23,664 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-23 23:36:23,742 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2024-11-23 23:36:23,742 INFO L444 ModelExtractionUtils]: 14 out of 28 variables were initially zero. Simplification set additionally 11 variables to zero. [2024-11-23 23:36:23,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-23 23:36:23,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:36:23,747 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-23 23:36:23,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-23 23:36:23,748 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-23 23:36:23,766 INFO L438 nArgumentSynthesizer]: Removed 7 redundant supporting invariants from a total of 8. [2024-11-23 23:36:23,767 INFO L474 LassoAnalysis]: Proved termination. [2024-11-23 23:36:23,767 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~a~0#1) = 1*ULTIMATE.start_main_~a~0#1 Supporting invariants [1*ULTIMATE.start_main_~a~0#1 >= 0] [2024-11-23 23:36:23,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-23 23:36:23,776 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-11-23 23:36:23,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:36:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:23,810 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:36:23,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:36:23,853 WARN L254 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 23:36:23,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:36:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:36:23,959 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2024-11-23 23:36:23,959 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14 Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:36:24,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 50 transitions. cyclomatic complexity: 14. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 103 transitions. Complement of second has 13 states. [2024-11-23 23:36:24,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-11-23 23:36:24,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 23:36:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2024-11-23 23:36:24,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 5 letters. Loop has 6 letters. [2024-11-23 23:36:24,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:24,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 11 letters. Loop has 6 letters. [2024-11-23 23:36:24,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:24,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 15 transitions. Stem has 5 letters. Loop has 12 letters. [2024-11-23 23:36:24,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-23 23:36:24,140 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 103 transitions. [2024-11-23 23:36:24,142 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 23:36:24,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-23 23:36:24,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-23 23:36:24,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-23 23:36:24,142 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-23 23:36:24,142 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:36:24,142 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-23 23:36:24,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-23 23:36:24,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 11:36:24 BoogieIcfgContainer [2024-11-23 23:36:24,155 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-23 23:36:24,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:36:24,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:36:24,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:36:24,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:36:19" (3/4) ... [2024-11-23 23:36:24,158 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:36:24,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:36:24,164 INFO L158 Benchmark]: Toolchain (without parser) took 5476.16ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 60.2MB in the end (delta: 31.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-23 23:36:24,164 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:36:24,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.67ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 75.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:36:24,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.32ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:36:24,165 INFO L158 Benchmark]: Boogie Preprocessor took 42.09ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 940.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:36:24,165 INFO L158 Benchmark]: RCFGBuilder took 289.17ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 64.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:36:24,166 INFO L158 Benchmark]: BuchiAutomizer took 4591.59ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.0MB in the end (delta: 3.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-23 23:36:24,166 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 21.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:36:24,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.67ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 75.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.32ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 74.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.09ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 73.5MB in the end (delta: 940.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.17ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 64.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4591.59ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.0MB in the end (delta: 3.3MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 117.4MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 21.1kB). 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 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 6 locations. One deterministic module has affine ranking function a and consists of 5 locations. One deterministic module has affine ranking function a and consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 46 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 19 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax182 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf92 smp100 dnf359 smp65 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 277ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 48 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-23 23:36:24,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-23 23:36:24,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27568a33-cb8e-4029-a3eb-e44131ae0fd2/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE