./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/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_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/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 32bit --witnessprinter.graph.data.programhash 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:58:26,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:58:26,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-24 01:58:26,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:58:26,529 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:58:26,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:58:26,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:58:26,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:58:26,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:58:26,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:58:26,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:58:26,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:58:26,573 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:58:26,574 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 01:58:26,574 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 01:58:26,574 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 01:58:26,575 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 01:58:26,575 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 01:58:26,575 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 01:58:26,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:58:26,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:58:26,577 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:58:26,577 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 01:58:26,577 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:58:26,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:58:26,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:58:26,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:58:26,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:58:26,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 01:58:26,579 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 01:58:26,579 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_44d3872e-3c37-498e-9e3d-6871421cf2c6/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2024-11-24 01:58:26,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:58:26,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:58:26,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:58:26,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:58:26,971 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:58:26,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-invgen/nested6.i [2024-11-24 01:58:30,033 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/data/f389447b2/5a840b609d5f41dd8ba592ec7d700714/FLAGcfb04cfee [2024-11-24 01:58:30,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:58:30,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/sv-benchmarks/c/loop-invgen/nested6.i [2024-11-24 01:58:30,299 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/data/f389447b2/5a840b609d5f41dd8ba592ec7d700714/FLAGcfb04cfee [2024-11-24 01:58:30,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/data/f389447b2/5a840b609d5f41dd8ba592ec7d700714 [2024-11-24 01:58:30,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:58:30,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:58:30,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:58:30,327 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:58:30,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:58:30,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38817cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30, skipping insertion in model container [2024-11-24 01:58:30,335 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:58:30,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:58:30,585 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:58:30,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:58:30,629 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:58:30,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30 WrapperNode [2024-11-24 01:58:30,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:58:30,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:58:30,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:58:30,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:58:30,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,669 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 78 [2024-11-24 01:58:30,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:58:30,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:58:30,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:58:30,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:58:30,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,705 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:58:30,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,713 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:58:30,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:58:30,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:58:30,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:58:30,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (1/1) ... [2024-11-24 01:58:30,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:30,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:30,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:30,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 01:58:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:58:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:58:30,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:58:30,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:58:30,863 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:58:30,865 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:58:31,052 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-24 01:58:31,052 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:58:31,067 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:58:31,067 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-24 01:58:31,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:58:31 BoogieIcfgContainer [2024-11-24 01:58:31,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:58:31,069 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 01:58:31,069 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 01:58:31,076 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 01:58:31,077 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:58:31,077 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 01:58:30" (1/3) ... [2024-11-24 01:58:31,079 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73ed9aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 01:58:31, skipping insertion in model container [2024-11-24 01:58:31,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:58:31,079 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:58:30" (2/3) ... [2024-11-24 01:58:31,080 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73ed9aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 01:58:31, skipping insertion in model container [2024-11-24 01:58:31,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 01:58:31,080 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:58:31" (3/3) ... [2024-11-24 01:58:31,082 INFO L363 chiAutomizerObserver]: Analyzing ICFG nested6.i [2024-11-24 01:58:31,147 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 01:58:31,147 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 01:58:31,147 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 01:58:31,147 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 01:58:31,148 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 01:58:31,148 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 01:58:31,148 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 01:58:31,148 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 01:58:31,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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) [2024-11-24 01:58:31,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2024-11-24 01:58:31,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:31,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:31,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-24 01:58:31,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-24 01:58:31,178 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 01:58:31,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 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) [2024-11-24 01:58:31,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2024-11-24 01:58:31,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:31,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:31,181 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-24 01:58:31,181 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-24 01:58:31,190 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" [2024-11-24 01:58:31,190 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" "assume !(main_~j~0#1 < main_~n~0#1);" "main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" [2024-11-24 01:58:31,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:31,197 INFO L85 PathProgramCache]: Analyzing trace with hash 28695784, now seen corresponding path program 1 times [2024-11-24 01:58:31,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:31,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63493875] [2024-11-24 01:58:31,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:31,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:31,284 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:31,309 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:31,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:31,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1543506, now seen corresponding path program 1 times [2024-11-24 01:58:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698752763] [2024-11-24 01:58:31,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:31,323 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:31,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:31,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1211539129, now seen corresponding path program 1 times [2024-11-24 01:58:31,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:31,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143682329] [2024-11-24 01:58:31,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:31,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:31,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:58:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143682329] [2024-11-24 01:58:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143682329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:58:31,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976348518] [2024-11-24 01:58:31,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:31,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:58:31,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:31,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:58:31,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:58:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:31,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:31,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:31,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:58:31,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976348518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:58:31,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:58:31,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-24 01:58:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689735029] [2024-11-24 01:58:31,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:58:31,934 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:31,934 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:31,935 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:31,935 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:31,935 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:58:31,935 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:31,935 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:31,935 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:31,936 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration1_Loop [2024-11-24 01:58:31,936 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:31,936 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:31,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:31,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:31,977 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:32,036 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:32,036 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 01:58:32,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-24 01:58:32,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:32,062 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:32,088 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 01:58:32,089 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6#1=0} Honda state: {ULTIMATE.start_main_#t~post6#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 01:58:32,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:32,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,103 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-24 01:58:32,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:32,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:32,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:32,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-24 01:58:32,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 01:58:32,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:32,223 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 01:58:32,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:32,226 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:32,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:32,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:32,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:32,227 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 01:58:32,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:32,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:32,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration1_Loop [2024-11-24 01:58:32,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:32,227 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:32,228 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:32,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:32,246 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:32,303 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:32,307 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 01:58:32,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-24 01:58:32,313 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 [2024-11-24 01:58:32,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:32,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:32,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:32,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:32,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:32,331 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:32,331 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:32,334 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 01:58:32,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-24 01:58:32,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-24 01:58:32,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-24 01:58:32,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:32,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:32,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:32,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:32,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:32,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:32,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:32,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 01:58:32,383 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-24 01:58:32,388 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 01:58:32,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:32,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:32,395 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:32,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-24 01:58:32,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 01:58:32,397 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 01:58:32,397 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 01:58:32,398 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-24 01:58:32,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:32,411 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 01:58:32,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:32,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:32,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:32,472 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:32,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:32,565 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:32,569 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-11-24 01:58:32,692 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 33 states, 32 states have (on average 1.46875) internal successors, (47), 32 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 83 states and 114 transitions. Complement of second has 6 states. [2024-11-24 01:58:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2024-11-24 01:58:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-11-24 01:58:32,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-24 01:58:32,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:32,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 9 letters. Loop has 4 letters. [2024-11-24 01:58:32,717 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:32,717 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 83 transitions. Stem has 5 letters. Loop has 8 letters. [2024-11-24 01:58:32,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:32,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 114 transitions. [2024-11-24 01:58:32,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-24 01:58:32,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 34 states and 41 transitions. [2024-11-24 01:58:32,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2024-11-24 01:58:32,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2024-11-24 01:58:32,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2024-11-24 01:58:32,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:32,735 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 41 transitions. [2024-11-24 01:58:32,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2024-11-24 01:58:32,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-24 01:58:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 33 states have internal predecessors, (41), 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) [2024-11-24 01:58:32,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2024-11-24 01:58:32,766 INFO L240 hiAutomatonCegarLoop]: Abstraction has 34 states and 41 transitions. [2024-11-24 01:58:32,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:58:32,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:58:32,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:58:32,773 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:32,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:32,961 INFO L93 Difference]: Finished difference Result 85 states and 101 transitions. [2024-11-24 01:58:32,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 101 transitions. [2024-11-24 01:58:32,967 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 28 [2024-11-24 01:58:32,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 85 states and 101 transitions. [2024-11-24 01:58:32,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2024-11-24 01:58:32,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2024-11-24 01:58:32,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 101 transitions. [2024-11-24 01:58:32,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:32,975 INFO L218 hiAutomatonCegarLoop]: Abstraction has 85 states and 101 transitions. [2024-11-24 01:58:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 101 transitions. [2024-11-24 01:58:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 36. [2024-11-24 01:58:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 35 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-11-24 01:58:32,979 INFO L240 hiAutomatonCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-24 01:58:32,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:58:32,981 INFO L425 stractBuchiCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-24 01:58:32,981 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-24 01:58:32,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 43 transitions. [2024-11-24 01:58:32,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-24 01:58:32,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:32,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:32,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:32,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-24 01:58:32,983 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-24 01:58:32,984 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" "assume !(main_~k~0#1 < main_~n~0#1);" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-24 01:58:32,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:32,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845292, now seen corresponding path program 1 times [2024-11-24 01:58:32,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:32,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034009372] [2024-11-24 01:58:32,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:32,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:32,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:33,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:33,008 INFO L85 PathProgramCache]: Analyzing trace with hash 57384732, now seen corresponding path program 1 times [2024-11-24 01:58:33,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:33,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170620830] [2024-11-24 01:58:33,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:33,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:33,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:58:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170620830] [2024-11-24 01:58:33,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170620830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:58:33,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555787672] [2024-11-24 01:58:33,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:33,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:58:33,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,048 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:58:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:33,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:58:33,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:33,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:58:33,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555787672] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:58:33,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:58:33,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-24 01:58:33,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263489945] [2024-11-24 01:58:33,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:58:33,116 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-24 01:58:33,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:58:33,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:58:33,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:58:33,117 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. cyclomatic complexity: 9 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:33,171 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2024-11-24 01:58:33,172 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 45 transitions. [2024-11-24 01:58:33,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-24 01:58:33,173 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 38 states and 45 transitions. [2024-11-24 01:58:33,173 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-24 01:58:33,173 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-11-24 01:58:33,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 45 transitions. [2024-11-24 01:58:33,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:33,174 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-11-24 01:58:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 45 transitions. [2024-11-24 01:58:33,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-24 01:58:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 37 states have internal predecessors, (45), 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) [2024-11-24 01:58:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2024-11-24 01:58:33,177 INFO L240 hiAutomatonCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-11-24 01:58:33,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:58:33,181 INFO L425 stractBuchiCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-11-24 01:58:33,181 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-24 01:58:33,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 45 transitions. [2024-11-24 01:58:33,182 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2024-11-24 01:58:33,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:33,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:33,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:33,183 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:33,183 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-24 01:58:33,183 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-24 01:58:33,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845292, now seen corresponding path program 2 times [2024-11-24 01:58:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:33,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119090285] [2024-11-24 01:58:33,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:33,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,194 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:33,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:33,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1102327203, now seen corresponding path program 1 times [2024-11-24 01:58:33,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:33,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716560213] [2024-11-24 01:58:33,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:33,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:33,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,227 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:33,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:33,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1173084174, now seen corresponding path program 1 times [2024-11-24 01:58:33,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:33,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915614191] [2024-11-24 01:58:33,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:33,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,261 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:33,287 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:33,373 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:33,373 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:33,373 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:33,374 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:33,374 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:58:33,374 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,374 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:33,374 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:33,374 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration3_Loop [2024-11-24 01:58:33,374 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:33,374 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:33,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,390 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,394 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,398 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,447 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:33,447 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 01:58:33,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,451 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-24 01:58:33,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:33,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:33,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-24 01:58:33,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,488 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-24 01:58:33,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 01:58:33,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:33,720 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 01:58:33,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:33,725 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:33,725 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:33,725 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:33,726 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:33,726 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 01:58:33,726 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,726 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:33,726 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:33,726 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration3_Loop [2024-11-24 01:58:33,726 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:33,726 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:33,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,742 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:33,801 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:33,801 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 01:58:33,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,805 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-24 01:58:33,809 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 [2024-11-24 01:58:33,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:33,825 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:33,825 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:33,825 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:33,825 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:33,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:33,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:33,828 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 01:58:33,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-24 01:58:33,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,841 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-24 01:58:33,845 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 [2024-11-24 01:58:33,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:33,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:33,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:33,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:33,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:33,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:33,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:33,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 01:58:33,873 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-24 01:58:33,873 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 01:58:33,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:33,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:33,877 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:33,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-24 01:58:33,880 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 01:58:33,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 01:58:33,880 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 01:58:33,880 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-24 01:58:33,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:33,891 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 01:58:33,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:33,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:33,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:33,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:33,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:34,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-24 01:58:34,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-24 01:58:34,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:34,069 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:34,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 45 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:34,122 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 45 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 90 states and 108 transitions. Complement of second has 5 states. [2024-11-24 01:58:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:34,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:34,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2024-11-24 01:58:34,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 7 letters. Loop has 8 letters. [2024-11-24 01:58:34,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 15 letters. Loop has 8 letters. [2024-11-24 01:58:34,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 7 letters. Loop has 16 letters. [2024-11-24 01:58:34,124 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 108 transitions. [2024-11-24 01:58:34,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-11-24 01:58:34,127 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 73 states and 87 transitions. [2024-11-24 01:58:34,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2024-11-24 01:58:34,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2024-11-24 01:58:34,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 87 transitions. [2024-11-24 01:58:34,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:34,127 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 87 transitions. [2024-11-24 01:58:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 87 transitions. [2024-11-24 01:58:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 59. [2024-11-24 01:58:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 58 states have internal predecessors, (70), 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) [2024-11-24 01:58:34,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-11-24 01:58:34,135 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-11-24 01:58:34,135 INFO L425 stractBuchiCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-11-24 01:58:34,135 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-24 01:58:34,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 70 transitions. [2024-11-24 01:58:34,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2024-11-24 01:58:34,136 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:34,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:34,136 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:34,136 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-24 01:58:34,137 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" [2024-11-24 01:58:34,137 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 < main_~n~0#1;" "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" [2024-11-24 01:58:34,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:34,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1096996875, now seen corresponding path program 1 times [2024-11-24 01:58:34,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:34,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730241853] [2024-11-24 01:58:34,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,144 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,151 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:34,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2251656, now seen corresponding path program 1 times [2024-11-24 01:58:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208023869] [2024-11-24 01:58:34,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:34,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,159 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,164 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:34,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:34,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1531079036, now seen corresponding path program 1 times [2024-11-24 01:58:34,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:34,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466455762] [2024-11-24 01:58:34,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:34,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:34,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,175 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:34,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:34,221 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:34,221 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:34,221 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:34,221 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:34,221 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:58:34,221 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,221 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:34,221 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:34,221 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-24 01:58:34,222 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:34,222 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:34,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,226 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,274 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:34,274 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 01:58:34,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,276 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-24 01:58:34,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:34,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:34,293 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 01:58:34,293 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4#1=0} Honda state: {ULTIMATE.start_main_#t~post4#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 01:58:34,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:34,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,303 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-24 01:58:34,307 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:34,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:34,323 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 01:58:34,323 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-24 01:58:34,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-24 01:58:34,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,336 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-24 01:58:34,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:34,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:34,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:34,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,369 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-24 01:58:34,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 01:58:34,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:34,486 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 01:58:34,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-24 01:58:34,490 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:34,490 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:34,490 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:34,490 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:34,490 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 01:58:34,490 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,490 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:34,490 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:34,490 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration4_Loop [2024-11-24 01:58:34,491 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:34,491 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:34,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,509 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,512 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:34,551 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:34,551 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 01:58:34,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,553 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-24 01:58:34,557 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 [2024-11-24 01:58:34,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:34,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:34,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:34,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:34,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:34,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:34,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:34,576 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-24 01:58:34,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-24 01:58:34,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,590 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-24 01:58:34,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-24 01:58:34,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:34,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:34,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:34,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:34,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:34,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:34,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:34,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 01:58:34,617 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 01:58:34,617 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-24 01:58:34,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:34,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:34,619 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:34,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-24 01:58:34,623 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 01:58:34,624 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 01:58:34,624 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 01:58:34,624 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-24 01:58:34,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-24 01:58:34,635 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 01:58:34,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:34,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:34,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:34,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:34,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:34,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:34,750 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:34,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 59 states and 70 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:34,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 59 states and 70 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 182 states and 217 transitions. Complement of second has 7 states. [2024-11-24 01:58:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2024-11-24 01:58:34,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-24 01:58:34,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 14 letters. Loop has 4 letters. [2024-11-24 01:58:34,822 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,822 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 10 letters. Loop has 8 letters. [2024-11-24 01:58:34,823 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:34,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 182 states and 217 transitions. [2024-11-24 01:58:34,825 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 33 [2024-11-24 01:58:34,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 182 states to 133 states and 157 transitions. [2024-11-24 01:58:34,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2024-11-24 01:58:34,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2024-11-24 01:58:34,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 157 transitions. [2024-11-24 01:58:34,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:34,827 INFO L218 hiAutomatonCegarLoop]: Abstraction has 133 states and 157 transitions. [2024-11-24 01:58:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 157 transitions. [2024-11-24 01:58:34,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 92. [2024-11-24 01:58:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 92 states have (on average 1.173913043478261) internal successors, (108), 91 states have internal predecessors, (108), 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) [2024-11-24 01:58:34,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 108 transitions. [2024-11-24 01:58:34,833 INFO L240 hiAutomatonCegarLoop]: Abstraction has 92 states and 108 transitions. [2024-11-24 01:58:34,833 INFO L425 stractBuchiCegarLoop]: Abstraction has 92 states and 108 transitions. [2024-11-24 01:58:34,833 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-24 01:58:34,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 108 transitions. [2024-11-24 01:58:34,834 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 25 [2024-11-24 01:58:34,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:34,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:34,835 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:34,835 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:34,835 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" "assume !(main_~j~0#1 < main_~n~0#1);" "main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" [2024-11-24 01:58:34,835 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 <= main_~n~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" [2024-11-24 01:58:34,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1024805023, now seen corresponding path program 1 times [2024-11-24 01:58:34,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671381884] [2024-11-24 01:58:34,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:35,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:58:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671381884] [2024-11-24 01:58:35,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671381884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:58:35,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201806595] [2024-11-24 01:58:35,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:35,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:58:35,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,005 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-24 01:58:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:35,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:58:35,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:35,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:58:35,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201806595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:58:35,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:58:35,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-24 01:58:35,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377398019] [2024-11-24 01:58:35,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:58:35,262 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-24 01:58:35,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1102327203, now seen corresponding path program 2 times [2024-11-24 01:58:35,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:35,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102835636] [2024-11-24 01:58:35,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:35,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:35,271 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:35,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:35,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:35,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:35,355 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:35,355 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:35,355 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:35,355 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:35,356 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:58:35,356 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,356 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:35,356 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:35,356 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-24 01:58:35,356 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:35,356 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:35,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,360 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,373 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,427 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:35,427 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 01:58:35,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,433 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:35,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:35,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-24 01:58:35,458 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-24 01:58:35,458 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: [] [2024-11-24 01:58:35,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-24 01:58:35,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,470 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-24 01:58:35,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:35,477 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:35,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-24 01:58:35,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,506 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-24 01:58:35,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 01:58:35,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:35,705 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 01:58:35,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-24 01:58:35,710 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:35,710 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:35,710 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:35,710 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:35,710 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 01:58:35,710 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,710 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:35,710 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:35,710 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration5_Loop [2024-11-24 01:58:35,710 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:35,710 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:35,711 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:35,772 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:35,772 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 01:58:35,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,774 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-24 01:58:35,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-24 01:58:35,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:35,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:35,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:35,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:35,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:35,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:35,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:35,795 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 01:58:35,802 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-24 01:58:35,802 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 01:58:35,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:35,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:35,805 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:35,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-24 01:58:35,809 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 01:58:35,809 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 01:58:35,809 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 01:58:35,809 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-24 01:58:35,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-11-24 01:58:35,820 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 01:58:35,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:35,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:35,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:35,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:35,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:35,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:35,974 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:35,974 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,018 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 157 states and 187 transitions. Complement of second has 5 states. [2024-11-24 01:58:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:36,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2024-11-24 01:58:36,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 19 letters. Loop has 8 letters. [2024-11-24 01:58:36,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:36,022 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 01:58:36,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:36,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:36,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:36,160 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:36,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,189 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 157 states and 187 transitions. Complement of second has 5 states. [2024-11-24 01:58:36,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 21 transitions. [2024-11-24 01:58:36,191 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 21 transitions. Stem has 19 letters. Loop has 8 letters. [2024-11-24 01:58:36,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:36,191 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 01:58:36,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:36,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:36,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:36,316 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:36,316 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 92 states and 108 transitions. cyclomatic complexity: 24. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 162 states and 193 transitions. Complement of second has 4 states. [2024-11-24 01:58:36,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-24 01:58:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2024-11-24 01:58:36,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 19 letters. Loop has 8 letters. [2024-11-24 01:58:36,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:36,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 27 letters. Loop has 8 letters. [2024-11-24 01:58:36,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:36,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 38 transitions. Stem has 19 letters. Loop has 16 letters. [2024-11-24 01:58:36,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:36,359 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 162 states and 193 transitions. [2024-11-24 01:58:36,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-11-24 01:58:36,362 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 162 states to 101 states and 119 transitions. [2024-11-24 01:58:36,362 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2024-11-24 01:58:36,362 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-24 01:58:36,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 119 transitions. [2024-11-24 01:58:36,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:36,362 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 119 transitions. [2024-11-24 01:58:36,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 119 transitions. [2024-11-24 01:58:36,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 66. [2024-11-24 01:58:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.196969696969697) internal successors, (79), 65 states have internal predecessors, (79), 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) [2024-11-24 01:58:36,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 79 transitions. [2024-11-24 01:58:36,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 79 transitions. [2024-11-24 01:58:36,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:58:36,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:58:36,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:58:36,368 INFO L87 Difference]: Start difference. First operand 66 states and 79 transitions. Second operand has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 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) [2024-11-24 01:58:36,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:36,500 INFO L93 Difference]: Finished difference Result 196 states and 229 transitions. [2024-11-24 01:58:36,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196 states and 229 transitions. [2024-11-24 01:58:36,503 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2024-11-24 01:58:36,506 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196 states to 192 states and 225 transitions. [2024-11-24 01:58:36,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2024-11-24 01:58:36,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2024-11-24 01:58:36,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 192 states and 225 transitions. [2024-11-24 01:58:36,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-24 01:58:36,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 192 states and 225 transitions. [2024-11-24 01:58:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states and 225 transitions. [2024-11-24 01:58:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 81. [2024-11-24 01:58:36,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 80 states have internal predecessors, (96), 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) [2024-11-24 01:58:36,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2024-11-24 01:58:36,520 INFO L240 hiAutomatonCegarLoop]: Abstraction has 81 states and 96 transitions. [2024-11-24 01:58:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:58:36,521 INFO L425 stractBuchiCegarLoop]: Abstraction has 81 states and 96 transitions. [2024-11-24 01:58:36,521 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-24 01:58:36,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81 states and 96 transitions. [2024-11-24 01:58:36,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-11-24 01:58:36,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 01:58:36,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 01:58:36,523 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:58:36,523 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-24 01:58:36,523 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~n~0#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume !!(main_~n~0#1 < 1000000);" "assume main_~k~0#1 == main_~n~0#1;" "main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 2 * main_~i~0#1;" "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" "assume main_~k~0#1 < main_~n~0#1;" "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" "assume !(main_~k~0#1 < main_~n~0#1);" "main_#t~post5#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1;" "assume main_~j~0#1 < main_~n~0#1;" "havoc main_#t~nondet3#1;" "assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~k~0#1 := main_~j~0#1;" [2024-11-24 01:58:36,523 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~k~0#1 < main_~n~0#1;" "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~k~0#1 >= 2 * main_~i~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;main_#t~post4#1 := main_~k~0#1;main_~k~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1;" [2024-11-24 01:58:36,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:36,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1629123977, now seen corresponding path program 1 times [2024-11-24 01:58:36,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:36,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766346706] [2024-11-24 01:58:36,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:36,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-24 01:58:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766346706] [2024-11-24 01:58:36,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766346706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:58:36,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351073148] [2024-11-24 01:58:36,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:36,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:58:36,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:36,611 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:58:36,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-24 01:58:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:36,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:36,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:58:36,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:36,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:58:36,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351073148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:58:36,736 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:58:36,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-24 01:58:36,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741112346] [2024-11-24 01:58:36,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:58:36,737 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-24 01:58:36,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:36,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2251656, now seen corresponding path program 2 times [2024-11-24 01:58:36,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 01:58:36,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991310834] [2024-11-24 01:58:36,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:58:36,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:58:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:36,743 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:58:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:58:36,747 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 01:58:36,782 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:36,782 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:36,782 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:36,782 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:36,782 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-24 01:58:36,782 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:36,782 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:36,782 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:36,782 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-24 01:58:36,782 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:36,782 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:36,783 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:36,793 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:36,796 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:36,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:36,832 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:36,833 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-24 01:58:36,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:36,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:36,838 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:36,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-24 01:58:36,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-24 01:58:36,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:36,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-24 01:58:36,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:36,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:36,875 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-24 01:58:36,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-24 01:58:36,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-24 01:58:37,023 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-24 01:58:37,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:37,027 INFO L204 LassoAnalysis]: Preferences: [2024-11-24 01:58:37,027 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-24 01:58:37,027 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-24 01:58:37,027 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-24 01:58:37,027 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-24 01:58:37,027 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:37,027 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-24 01:58:37,028 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-24 01:58:37,028 INFO L132 ssoRankerPreferences]: Filename of dumped script: nested6.i_Iteration6_Loop [2024-11-24 01:58:37,028 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-24 01:58:37,028 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-24 01:58:37,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:37,041 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:37,044 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:37,046 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-24 01:58:37,079 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-24 01:58:37,079 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-24 01:58:37,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:37,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:37,085 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:37,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-24 01:58:37,088 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 [2024-11-24 01:58:37,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-24 01:58:37,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-24 01:58:37,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-24 01:58:37,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-24 01:58:37,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-24 01:58:37,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-24 01:58:37,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-24 01:58:37,110 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-24 01:58:37,116 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-24 01:58:37,116 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-24 01:58:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 01:58:37,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:58:37,120 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 01:58:37,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-24 01:58:37,124 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-24 01:58:37,124 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-24 01:58:37,124 INFO L474 LassoAnalysis]: Proved termination. [2024-11-24 01:58:37,124 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~k~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-11-24 01:58:37,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-24 01:58:37,136 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-24 01:58:37,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:37,241 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:37,241 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,307 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 157 states and 190 transitions. Complement of second has 7 states. [2024-11-24 01:58:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:37,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2024-11-24 01:58:37,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 19 letters. Loop has 4 letters. [2024-11-24 01:58:37,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:37,309 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 01:58:37,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:37,408 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:37,408 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 157 states and 190 transitions. Complement of second has 7 states. [2024-11-24 01:58:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:37,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2024-11-24 01:58:37,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 35 transitions. Stem has 19 letters. Loop has 4 letters. [2024-11-24 01:58:37,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:37,453 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-24 01:58:37,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:58:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:58:37,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:58:37,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:58:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:58:37,546 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-24 01:58:37,546 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,592 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81 states and 96 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 128 states and 154 transitions. Complement of second has 6 states. [2024-11-24 01:58:37,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-24 01:58:37,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:58:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2024-11-24 01:58:37,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 19 letters. Loop has 4 letters. [2024-11-24 01:58:37,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:37,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 23 letters. Loop has 4 letters. [2024-11-24 01:58:37,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:37,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 41 transitions. Stem has 19 letters. Loop has 8 letters. [2024-11-24 01:58:37,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-24 01:58:37,595 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 154 transitions. [2024-11-24 01:58:37,597 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 01:58:37,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 0 states and 0 transitions. [2024-11-24 01:58:37,597 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-24 01:58:37,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-24 01:58:37,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-24 01:58:37,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 01:58:37,598 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:58:37,598 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:58:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-24 01:58:37,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:58:37,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:58:37,598 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2024-11-24 01:58:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:58:37,599 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2024-11-24 01:58:37,599 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2024-11-24 01:58:37,599 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 01:58:37,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:58:37,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-24 01:58:37,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-24 01:58:37,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-24 01:58:37,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-24 01:58:37,599 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:58:37,599 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:58:37,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:58:37,600 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:58:37,600 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-24 01:58:37,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:58:37,600 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-24 01:58:37,600 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-24 01:58:37,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.11 01:58:37 BoogieIcfgContainer [2024-11-24 01:58:37,613 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-24 01:58:37,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:58:37,614 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:58:37,614 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:58:37,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:58:31" (3/4) ... [2024-11-24 01:58:37,617 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:58:37,618 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:58:37,622 INFO L158 Benchmark]: Toolchain (without parser) took 7294.27ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 46.7MB in the end (delta: 46.4MB). Peak memory consumption was 50.2MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,623 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:58:37,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.72ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.31ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:58:37,625 INFO L158 Benchmark]: Boogie Preprocessor took 59.13ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,625 INFO L158 Benchmark]: RCFGBuilder took 338.21ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,626 INFO L158 Benchmark]: BuchiAutomizer took 6544.17ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 46.7MB in the end (delta: 21.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,626 INFO L158 Benchmark]: Witness Printer took 4.78ms. Allocated memory is still 117.4MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 21.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:58:37,629 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 74.0MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.72ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 82.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.31ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.13ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.3MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 338.21ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 6544.17ms. Allocated memory is still 117.4MB. Free memory was 68.5MB in the beginning and 46.7MB in the end (delta: 21.8MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 4.78ms. Allocated memory is still 117.4MB. Free memory was 46.7MB in the beginning and 46.7MB in the end (delta: 21.1kB). Peak memory consumption was 8.4MB. 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 9 terminating modules (4 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function (((long long) -1 * i) + n) and consists of 4 locations. One deterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. One deterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. One nondeterministic module has affine ranking function (((long long) -1 * j) + n) and consists of 3 locations. One nondeterministic module has affine ranking function (n + ((long long) -1 * k)) and consists of 4 locations. 4 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.4s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.4s. Büchi inclusion checks took 1.6s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 7. Automata minimization 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 250 StatesRemovedByMinimization, 5 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, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 532 mSDsluCounter, 494 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 244 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 250 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-24 01:58:37,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:37,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-24 01:58:38,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-24 01:58:38,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 01:58:38,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:58:38,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44d3872e-3c37-498e-9e3d-6871421cf2c6/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